Question 1

Random variable x has the probability function: f(x) = x/6 for x =1,2 or 3.The expected value of x is

Accepted Answer

A)  0.333 
B)  0.500 
C)  2.000 
D)  2.333 
A)  0.333 
B)  0.500 
C)  2.000 
D)  2.333 D

Question 2

A name closely associated with the binomial probability distribution is​

Accepted Answer

A)  ​Bernoulli. 
B)  ​de Moivre. 
C)  ​Pareto. 
D)  ​Poisson. 
A)  ​Bernoulli. 
B)  ​de Moivre. 
C)  ​Pareto. 
D)  ​Poisson. A

Question 3

The probability distribution for the number of goals the Lions soccer team makes per game is given below.   $$\begin{array} { c c } 
\text { Number of Goals } & \text { Probability } \
\hline 0 & 0.05 \
1 & 0.15 \
2 & 0.35 \
3 & 0.30 \
4 & 0.15
\end{array}$$  
What is the probability that in a given game the Lions will score less than 3 goals?

Accepted Answer

A)  .85 
B)   .55 
C)   .45 
D)   .80 
A)  .85 
B)   .55 
C)   .45 
D)   .80 B

Question 4

When dealing with the number of occurrences of an event over a specified interval of time or space, the appropriate probability distribution is a

Accepted Answer

A)  Binomial distribution. 
B)  Poisson distribution. 
C)  Normal distribution. 
D)  Hypergeometric probability distribution. 
A)  Binomial distribution. 
B)  Poisson distribution. 
C)  Normal distribution. 
D)  Hypergeometric probability distribution.

Question 5

The probability distribution for the number of goals the Lions soccer team makes per game is given below.  $$\begin{array} { c c } 
\text { Number of Goals } & \text { Probability } \
\hline 0 & 0.05 \
1 & 0.15 \
2 & 0.35 \
3 & 0.30 \
4 & 0.15
\end{array}$$ The expected number of goals per game is?

Accepted Answer

A)   2 
B)   2.35 
C)   2.5 
D)   3 
A)   2 
B)   2.35 
C)   2.5 
D)   3

Question 6

The random variable x is the number of occurrences of an event over an interval of ten minutes.It can be assumed that the probability of an occurrence is the same in any two-time periods of an equal length.It is known that the mean number of occurrences in ten minutes is 5.3.The probability that there are 8 occurrences in ten minutes is

Accepted Answer

A)  .0241 
B)  .0771 
C)  .1126 
D)  .9107 
A)  .0241 
B)  .0771 
C)  .1126 
D)  .9107

Question 7

The probability distribution for the daily sales at Michael's Co.is given below. $\begin{array}{cc}
\text { Daily Sales } & \
\text { (In } \$ 1,000 \text { s) } & \text { Probability } \
40 & 0.1 \
50 & 0.4 \
60 & 0.3 \
70 & 0.2
\end{array}$ 
 The probability of having sales of no more than $60,000 is

Accepted Answer

A)  0.7 
B)  0.2 
C)  0.8 
D)  0.5 
A)  0.7 
B)  0.2 
C)  0.8 
D)  0.5

Question 8

If one wanted to find the probability of ten customer arrivals in an hour at a service station, one would generally use the​

Accepted Answer

A)  ​binomial probability distribution. 
B)  ​Poisson probability distribution. 
C)  ​hypergeometric probability distribution. 
D)  ​exponential probability distribution. 
A)  ​binomial probability distribution. 
B)  ​Poisson probability distribution. 
C)  ​hypergeometric probability distribution. 
D)  ​exponential probability distribution.

Question 9

The _____ probability function is based in part on the counting rule for combinations.​

Accepted Answer

A)  ​binomial 
B)  ​Poisson 
C)  ​hypergeometric 
D)  ​exponential 
A)  ​binomial 
B)  ​Poisson 
C)  ​hypergeometric 
D)  ​exponential

Question 10

The binomial probability distribution is most symmetric when​

Accepted Answer

A)  ​n is 30 or greater. 
B)  ​n equals p. 
C)  ​p approaches 1. 
D)  ​p equals 0.5. 
A)  ​n is 30 or greater. 
B)  ​n equals p. 
C)  ​p approaches 1. 
D)  ​p equals 0.5.

Question 11

The probability distribution for the daily sales at Michael's Co.is given below.   $$\begin{array} { c c } 
\text { Daily Sales } ( \$ 1,000 s ) & \text { Probability } \
40 & 0.1 \
50 & 0.4 \
60 & 0.3 \
70 & 0.2
\end{array}$$  
The expected daily sales are

Accepted Answer

A)   $50,000 
B)   $55,000 
C)   $56,000 
D)   $60,000 
A)   $50,000 
B)   $55,000 
C)   $56,000 
D)   $60,000

Question 12

The probability that Pete will catch fish when he goes fishing is .8.Pete is going to fish 3 days next week.Define the random variable x to be the number of days Pete catches fish.The expected number of days Pete will catch fish is

Accepted Answer

A)  .6 
B)  .8 
C)  2.4 
D)  3 
A)  .6 
B)  .8 
C)  2.4 
D)  3

Question 13

The probability distribution for the number of goals the Lions soccer team makes per game is given below. $$\begin{array}{l}
\text { Number }\
\begin{array} { c c } 
\text { Of Goals } & \text { Probability } \
0 & 0.05 \
1 & 0.15 \
2 & 0.35 \
3 & 0.30 \
4 & 0.15
\end{array}
\end{array}$$   What is the probability that in a given game the Lions do not score more than 2 goals?

Accepted Answer

A)  0.20 
B)  0.55 
C)  1.0 
D)  0.95 
A)  0.20 
B)  0.55 
C)  1.0 
D)  0.95

Question 14

A probability distribution showing the probability of x successes in n trials, where the probability of success does not change from trial to trial, is termed a

Accepted Answer

A)  uniform probability distribution. 
B)  binomial probability distribution. 
C)  hypergeometric probability distribution. 
D)  normal probability distribution. 
A)  uniform probability distribution. 
B)  binomial probability distribution. 
C)  hypergeometric probability distribution. 
D)  normal probability distribution.

Question 15

Which of the following is a characteristic of an experiment where the binomial probability distribution is applicable?

Accepted Answer

A)  The experiment has at least two possible outcomes 
B)  Exactly two outcomes are possible on each trial 
C)  The trials are dependent on each other 
D)  The probabilities of the outcomes changes from one trial 
A)  The experiment has at least two possible outcomes 
B)  Exactly two outcomes are possible on each trial 
C)  The trials are dependent on each other 
D)  The probabilities of the outcomes changes from one trial

Question 16

In a binomial experiment consisting of five trials, the number of different values that x (the number of successes) can assume is​

Accepted Answer

A)  ​2 
B)  ​5 
C)  ​6 
D)  ​10 
A)  ​2 
B)  ​5 
C)  ​6 
D)  ​10

Question 17

In a binomial experiment the probability of success is 0.06.What is the probability of two successes in seven trials?

Accepted Answer

A)  0.0036 
B)  0.0600 
C)  0.0555 
D)  0.2800 
A)  0.0036 
B)  0.0600 
C)  0.0555 
D)  0.2800

Question 18

The student body of a large university consists of 60% female students.A random sample of 8 students is selected.What is the probability that among the students in the sample at least 6 are male?

Accepted Answer

A)  0.0413 
B)  0.0079 
C)  0.0007 
D)  0.0499 
A)  0.0413 
B)  0.0079 
C)  0.0007 
D)  0.0499

Question 19

The probability that Pete will catch fish when he goes fishing is .8.Pete is going to fish 3 days next week.Define the random variable x to be the number of days Pete catches fish.The variance of the number of days Pete will catch fish is

Accepted Answer

A)  .16 
B)  .48 
C)  .8 
D)  2.4 
A)  .16 
B)  .48 
C)  .8 
D)  2.4

Question 20

A production process produces 2% defective parts.A sample of five parts from the production process is selected.What is the probability that the sample contains exactly two defective parts?​

Accepted Answer

A)  ​0.0004 
B)  ​0.0038 
C)  ​0.10 
D)  ​0.02 
A)  ​0.0004 
B)  ​0.0038 
C)  ​0.10 
D)  ​0.02

Random variable x has the probability function: f(x) = x/6 for x =1,2 or 3.The expected value of x is

A name closely associated with the binomial probability distribution is

The probability distribution for the number of goals the Lions soccer team makes per game is given below. Number of Goals Probability 0 0.05 1 0.15 2 0.35 3 0.30 4 0.15 What is the probability that in a given game the Lions will score less than 3 goals?

When dealing with the number of occurrences of an event over a specified interval of time or space, the appropriate probability distribution is a

The probability distribution for the number of goals the Lions soccer team makes per game is given below. Number of Goals Probability 0 0.05 1 0.15 2 0.35 3 0.30 4 0.15 The expected number of goals per game is?

The probability distribution for the daily sales at Michael's Co.is given below. Daily Sales (In \ 1,000 s) Probability 40 0.1 50 0.4 60 0.3 70 0.2 The probability of having sales of no more than $60,000 is

If one wanted to find the probability of ten customer arrivals in an hour at a service station, one would generally use the

The _____ probability function is based in part on the counting rule for combinations.

The binomial probability distribution is most symmetric when

The probability distribution for the daily sales at Michael's Co.is given below. Daily Sales (\ 1,000s) Probability 40 0.1 50 0.4 60 0.3 70 0.2 The expected daily sales are

The probability that Pete will catch fish when he goes fishing is .8.Pete is going to fish 3 days next week.Define the random variable x to be the number of days Pete catches fish.The expected number of days Pete will catch fish is

The probability distribution for the number of goals the Lions soccer team makes per game is given below. Number Of Goals Probability 0 0.05 1 0.15 2 0.35 3 0.30 4 0.15 What is the probability that in a given game the Lions do not score more than 2 goals?

A probability distribution showing the probability of x successes in n trials, where the probability of success does not change from trial to trial, is termed a

Which of the following is a characteristic of an experiment where the binomial probability distribution is applicable?

In a binomial experiment consisting of five trials, the number of different values that x (the number of successes) can assume is

In a binomial experiment the probability of success is 0.06.What is the probability of two successes in seven trials?

The student body of a large university consists of 60% female students.A random sample of 8 students is selected.What is the probability that among the students in the sample at least 6 are male?

The probability that Pete will catch fish when he goes fishing is .8.Pete is going to fish 3 days next week.Define the random variable x to be the number of days Pete catches fish.The variance of the number of days Pete will catch fish is

A production process produces 2% defective parts.A sample of five parts from the production process is selected.What is the probability that the sample contains exactly two defective parts?

Data and Statistics

Descriptive Statistics: Tabulargraphical

Descriptive Statistics: Numerical

Introduction to Probability

Continuous Probability Distributions

Sampling and Sampling Distributions

Interval Estimation

Hypothesis Tests

Inference About Means and Proportions With Two Populations

Inferences About Population Variances

Comparing Multiple Proportions, Test of Independence and Goodness of Fit

Experimental Design and Analysis of Variance

Simple Linear Regression

Multiple Regression

Filters

Exam 5: Discrete Probability Distributions

Random variable x has the probability function: f(x) = x/6 for x =1,2 or 3.The expected value of x is

A name closely associated with the binomial probability distribution is​

The probability distribution for the number of goals the Lions soccer team makes per game is given below. Number of Goals Probability 0 0.05 1 0.15 2 0.35 3 0.30 4 0.15 What is the probability that in a given game the Lions will score less than 3 goals?

When dealing with the number of occurrences of an event over a specified interval of time or space, the appropriate probability distribution is a

The probability distribution for the number of goals the Lions soccer team makes per game is given below. Number of Goals Probability 0 0.05 1 0.15 2 0.35 3 0.30 4 0.15 The expected number of goals per game is?

The probability distribution for the daily sales at Michael's Co.is given below. Daily Sales (In \ 1,000 s) Probability 40 0.1 50 0.4 60 0.3 70 0.2 The probability of having sales of no more than $60,000 is

If one wanted to find the probability of ten customer arrivals in an hour at a service station, one would generally use the​

The _____ probability function is based in part on the counting rule for combinations.​

The binomial probability distribution is most symmetric when​

The probability distribution for the daily sales at Michael's Co.is given below. Daily Sales (\ 1,000s) Probability 40 0.1 50 0.4 60 0.3 70 0.2 The expected daily sales are

The probability that Pete will catch fish when he goes fishing is .8.Pete is going to fish 3 days next week.Define the random variable x to be the number of days Pete catches fish.The expected number of days Pete will catch fish is

The probability distribution for the number of goals the Lions soccer team makes per game is given below. Number Of Goals Probability 0 0.05 1 0.15 2 0.35 3 0.30 4 0.15 What is the probability that in a given game the Lions do not score more than 2 goals?

A probability distribution showing the probability of x successes in n trials, where the probability of success does not change from trial to trial, is termed a

Which of the following is a characteristic of an experiment where the binomial probability distribution is applicable?

In a binomial experiment consisting of five trials, the number of different values that x (the number of successes) can assume is​

In a binomial experiment the probability of success is 0.06.What is the probability of two successes in seven trials?

The student body of a large university consists of 60% female students.A random sample of 8 students is selected.What is the probability that among the students in the sample at least 6 are male?

The probability that Pete will catch fish when he goes fishing is .8.Pete is going to fish 3 days next week.Define the random variable x to be the number of days Pete catches fish.The variance of the number of days Pete will catch fish is

A production process produces 2% defective parts.A sample of five parts from the production process is selected.What is the probability that the sample contains exactly two defective parts?​

Data and Statistics

Descriptive Statistics: Tabulargraphical

Descriptive Statistics: Numerical

Introduction to Probability

Continuous Probability Distributions

Sampling and Sampling Distributions

Interval Estimation

Hypothesis Tests

Inference About Means and Proportions With Two Populations

Inferences About Population Variances

Comparing Multiple Proportions, Test of Independence and Goodness of Fit

Experimental Design and Analysis of Variance

Simple Linear Regression

Multiple Regression

Filters

A name closely associated with the binomial probability distribution is

If one wanted to find the probability of ten customer arrivals in an hour at a service station, one would generally use the

The _____ probability function is based in part on the counting rule for combinations.

The binomial probability distribution is most symmetric when

In a binomial experiment consisting of five trials, the number of different values that x (the number of successes) can assume is

A production process produces 2% defective parts.A sample of five parts from the production process is selected.What is the probability that the sample contains exactly two defective parts?