A sample of 2,500 people was asked how many cups of coffee they drink in the morning.You are given the following sample information. \[\begin{array} { c c } \text { Cups of Coffee } & \text { Frequency } \\ 0 & 700 \\ 1 & 900 \\ 2 & 600 \\ 3 & 300 \\ & 2,500 \end{array}\] The variance of the number of cups of coffee is

A) .96 B) .9798 C) 1 D) 2.4 A) .96 B) .9798 C) 1 D) 2.4

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 at least $50,000 is

A) 0.5 B) 0.10 C) 0.30 D) 0.90 A) 0.5 B) 0.10 C) 0.30 D) 0.90

Roth is a computer-consulting firm.The number of new clients that they have obtained each month has ranged from 0 to 6.The number of new clients has the probability distribution that is shown below. \[\begin{array}{l} \text { Number of }\\ \begin{array} { c c } \text { New Clients } & \text { Probability } \\ \hline 0 & 0.05 \\ 1 & 0.10 \\ 2 & 0.15 \\ 3 & 0.35 \\ 4 & 0.20 \\ 5 & 0.10 \\ 6 & 0.05 \end{array} \end{array}\] The expected number of new clients per month is

A) 6 B) 0 C) 3.05 D) 21 A) 6 B) 0 C) 3.05 D) 21

A sample of 2,500 people was asked how many cups of coffee they drink in the morning.You are given the following sample information. \[\begin{array} { c c } \text { Cups of Coffee } & \text { Frequency } \\ 0 & 700 \\ 1 & 900 \\ 2 & 600 \\ 3 & 300 \\ & 2,500 \end{array}\] The expected number of cups of coffee is?

A) 1 B) 1.2 C) 1.5 D) 1.7 A) 1 B) 1.2 C) 1.5 D) 1.7

Roth is a computer-consulting firm.The number of new clients that they have obtained each month has ranged from 0 to 6.The number of new clients has the probability distribution that is shown below. \[\begin{array}{l} \text { Number of }\\ \begin{array} { c c } \text { New Clients } & \text { Probability } \\ \hline 0 & 0.05 \\ 1 & 0.10 \\ 2 & 0.15 \\ 3 & 0.35 \\ 4 & 0.20 \\ 5 & 0.10 \\ 6 & 0.05 \end{array} \end{array}\] The variance is

A) 1.431 B) 2.047 C) 3.05 D) 21 A) 1.431 B) 2.047 C) 3.05 D) 21

Exam 5: Discrete Probability Distributions

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 expected value of the random variable x is

(Multiple Choice)

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Question 21

The weight of an object is an example of

(Multiple Choice)

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Question 22

A sample of 2,500 people was asked how many cups of coffee they drink in the morning.You are given the following sample information. Cups of Coffee Frequency 0 700 1 900 2 600 3 300 2,500 The variance of the number of cups of coffee is

(Multiple Choice)

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Question 23

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 at least $50,000 is

(Multiple Choice)

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Question 24

A measure of the average value of a random variable is called a(n)

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Question 25

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

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Question 26

Roth is a computer-consulting firm.The number of new clients that they have obtained each month has ranged from 0 to 6.The number of new clients has the probability distribution that is shown below. Number of New Clients Probability 0 0.05 1 0.10 2 0.15 3 0.35 4 0.20 5 0.10 6 0.05 The expected number of new clients per month is

(Multiple Choice)

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Question 27

The binomial probability distribution is used with

(Multiple Choice)

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Question 28

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 less than 3 occurrences is

(Multiple Choice)

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Question 29

A description of the distribution of the values of a random variable and their associated probabilities is called a

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Question 30

A weighted average of the values of a random variable, where the probability function provides weights, is known as

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Question 31

A sample of 2,500 people was asked how many cups of coffee they drink in the morning.You are given the following sample information. Cups of Coffee Frequency 0 700 1 900 2 600 3 300 2,500 The expected number of cups of coffee is?

(Multiple Choice)

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Question 32

Which of the following is not a property of a binomial experiment?

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Question 33

Which of the following is a required condition for a discrete probability function?

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Question 34

The Poisson probability distribution is used with

(Multiple Choice)

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Question 35

The Poisson probability distribution is a

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Question 36

Roth is a computer-consulting firm.The number of new clients that they have obtained each month has ranged from 0 to 6.The number of new clients has the probability distribution that is shown below. Number of New Clients Probability 0 0.05 1 0.10 2 0.15 3 0.35 4 0.20 5 0.10 6 0.05 The variance is

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Question 37

Which of the following properties of a binomial experiment is called the stationarity assumption?

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Question 38

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

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Question 39

Twenty percent of the students in a class of 100 are planning to go to graduate school.The standard deviation of this binomial distribution is

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Question 40

The weight of an object is an example of

A sample of 2,500 people was asked how many cups of coffee they drink in the morning.You are given the following sample information. Cups of Coffee Frequency 0 700 1 900 2 600 3 300 2,500 The variance of the number of cups of coffee 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 at least $50,000 is

A measure of the average value of a random variable is called a(n)

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

The binomial probability distribution is used with

A description of the distribution of the values of a random variable and their associated probabilities is called a

A weighted average of the values of a random variable, where the probability function provides weights, is known as

A sample of 2,500 people was asked how many cups of coffee they drink in the morning.You are given the following sample information. Cups of Coffee Frequency 0 700 1 900 2 600 3 300 2,500 The expected number of cups of coffee is?

Which of the following is not a property of a binomial experiment?

Which of the following is a required condition for a discrete probability function?

The Poisson probability distribution is used with

The Poisson probability distribution is a

Roth is a computer-consulting firm.The number of new clients that they have obtained each month has ranged from 0 to 6.The number of new clients has the probability distribution that is shown below. Number of New Clients Probability 0 0.05 1 0.10 2 0.15 3 0.35 4 0.20 5 0.10 6 0.05 The variance is

Which of the following properties of a binomial experiment is called the stationarity assumption?

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

Twenty percent of the students in a class of 100 are planning to go to graduate school.The standard deviation of this binomial distribution is

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

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Exam 5: Discrete Probability Distributions

The weight of an object is an example of

A sample of 2,500 people was asked how many cups of coffee they drink in the morning.You are given the following sample information. Cups of Coffee Frequency 0 700 1 900 2 600 3 300 2,500 The variance of the number of cups of coffee 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 at least $50,000 is

A measure of the average value of a random variable is called a(n)

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

The binomial probability distribution is used with

A description of the distribution of the values of a random variable and their associated probabilities is called a

A weighted average of the values of a random variable, where the probability function provides weights, is known as

A sample of 2,500 people was asked how many cups of coffee they drink in the morning.You are given the following sample information. Cups of Coffee Frequency 0 700 1 900 2 600 3 300 2,500 The expected number of cups of coffee is?

Which of the following is not a property of a binomial experiment?

Which of the following is a required condition for a discrete probability function?

The Poisson probability distribution is used with

The Poisson probability distribution is a

Roth is a computer-consulting firm.The number of new clients that they have obtained each month has ranged from 0 to 6.The number of new clients has the probability distribution that is shown below. Number of New Clients Probability 0 0.05 1 0.10 2 0.15 3 0.35 4 0.20 5 0.10 6 0.05 The variance is

Which of the following properties of a binomial experiment is called the stationarity assumption? ​

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

Twenty percent of the students in a class of 100 are planning to go to graduate school.The standard deviation of this binomial distribution is

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

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

Which of the following properties of a binomial experiment is called the stationarity assumption?

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