Question 1

This question has four possible answers listed below and only one of them is correct. If you select one at random, what are the odds that you pick the correct answer?

Accepted Answer

A)   1:2
B)   1:3
C)   1:4
D)   1:5 B

Question 2

For normal distribution, what percent of the data will fall in the interval of one standard deviation above and below the mean? 
A)$ 50 \% $
B) $ 65 \% $
C)$ 68 \% $
D)$ 95 \% $

Accepted Answer

C

Question 3

That area of science that deals with collection, organization, analysis, and interpretation of data is known as

Accepted Answer

A)   probability.
B)   statics.
C)   statistics.
D)   mathematics. C

Question 4

A random experiment is one that has random outcomes that cannot be predicted exactly.

Accepted Answer

A) True 
 B)False

Question 5

There are 20 red marbles and 10 blue marbles mixed together in a cloth bag. If you reach in and pull out a marble, without looking, what are the odds of selecting a blue marble?

Accepted Answer

A)   1:2
B)   1:3
C)   1:4
D)   1:5

Question 6

In probability, each time you repeat an experiment is called a

Accepted Answer

A)   trial.
B)   test run.
C)   measurement.
D)   guess.

Question 7

The standard deviation is

Accepted Answer

A)   the square root of the variance.
B)   the square of the variance.
C)   the root mean squared of the variance.
D)   the absolute value of the variance.

Question 8

The arithmetic average of a list of numbers is known as the

Accepted Answer

A)   median.
B)   mode.
C)   mean.
D)   root mean squared.

Question 9

The probability distribution for many engineering experiments is approximated by

Accepted Answer

A)   the average (mean)  value of the data.
B)   a normal distribution.
C)   the standard deviation.
D)   none of the above.

Question 10

Something with a large number of data points is commonly called a

Accepted Answer

A)   population.
B)   group.
C)   data set.
D)   sample.

Question 11

For any probability distribution, the sum of probabilities is always

Accepted Answer

A)   0
B)   0.5
C)   1
D)   equal to the standard deviation.

Question 12

The cumulative frequency shows the cumulative number of students with scores up to and including those in the given range.

Accepted Answer

A) True 
 B)False

Question 13

Random errors

Accepted Answer

A)   can be detected and avoided by properly calibrating instruments.
B)   are generated by a number of unpredictable variations.
C)   rarely occur in a properly designed experiment.
D)   can be removed from the data set through proper statistical analysis.

Question 14

Systemic errors are errors

Accepted Answer

A)   that occur throughout the entire system.
B)   that occur on a frequent basis.
C)   associated with using an inaccurate instrument.
D)   associated with the design and setup of the experiment.

Question 15

A smaller portion of the entire data or population is commonly called a

Accepted Answer

A)   subset.
B)   group.
C)   data set.
D)   sample.

Question 16

There are 20 red marbles and 10 blue marbles mixed together in a cloth bag. If you reach in and pull out a marble, without looking, what is the probability of selecting a blue marble?

Accepted Answer

A)   0.75
B)   0.50
C)   0.25
D)   0.33

Question 17

A common way of measuring the dispersion of data is by calculating the

Accepted Answer

A)   spread.
B)   scattering.
C)   mode.
D)   variance.

Question 18

The result of an experiment is called

Accepted Answer

A)   the end product.
B)   an outcome.
C)   the answer.
D)   the product.

Question 19

This question has four possible answers listed below and only one of them is correct. If you select one at random, what is the probability that you pick the correct answer?

Accepted Answer

A)   0.75
B)   0.50
C)   0.25
D)   0.10

Question 20

There are basically two types of observation errors:

Accepted Answer

A)   personal and professional.
B)   systemic and random.
C)   partial and complete.
D)   visual and measured.

Exam 19: Probability and Statistics in Engineering

This question has four possible answers listed below and only one of them is correct. If you select one at random, what are the odds that you pick the correct answer?

For normal distribution, what percent of the data will fall in the interval of one standard deviation above and below the mean? A) $50 \%$ B) $65 \%$ C) $68 \%$ D) $95 \%$

That area of science that deals with collection, organization, analysis, and interpretation of data is known as

A random experiment is one that has random outcomes that cannot be predicted exactly.

There are 20 red marbles and 10 blue marbles mixed together in a cloth bag. If you reach in and pull out a marble, without looking, what are the odds of selecting a blue marble?

In probability, each time you repeat an experiment is called a

The standard deviation is

The arithmetic average of a list of numbers is known as the

The probability distribution for many engineering experiments is approximated by

Something with a large number of data points is commonly called a

For any probability distribution, the sum of probabilities is always

The cumulative frequency shows the cumulative number of students with scores up to and including those in the given range.

Random errors

Systemic errors are errors

A smaller portion of the entire data or population is commonly called a

There are 20 red marbles and 10 blue marbles mixed together in a cloth bag. If you reach in and pull out a marble, without looking, what is the probability of selecting a blue marble?

A common way of measuring the dispersion of data is by calculating the

The result of an experiment is called

This question has four possible answers listed below and only one of them is correct. If you select one at random, what is the probability that you pick the correct answer?

There are basically two types of observation errors:

Exam 19: Probability and Statistics in Engineering

This question has four possible answers listed below and only one of them is correct. If you select one at random, what are the odds that you pick the correct answer?

For normal distribution, what percent of the data will fall in the interval of one standard deviation above and below the mean? A) 50% 50 \% 50% B) 65% 65 \% 65% C) 68% 68 \% 68% D) 95% 95 \% 95%

That area of science that deals with collection, organization, analysis, and interpretation of data is known as

A random experiment is one that has random outcomes that cannot be predicted exactly.

There are 20 red marbles and 10 blue marbles mixed together in a cloth bag. If you reach in and pull out a marble, without looking, what are the odds of selecting a blue marble?

In probability, each time you repeat an experiment is called a

The standard deviation is

The arithmetic average of a list of numbers is known as the

The probability distribution for many engineering experiments is approximated by

Something with a large number of data points is commonly called a

For any probability distribution, the sum of probabilities is always

The cumulative frequency shows the cumulative number of students with scores up to and including those in the given range.

Random errors

Systemic errors are errors

A smaller portion of the entire data or population is commonly called a

There are 20 red marbles and 10 blue marbles mixed together in a cloth bag. If you reach in and pull out a marble, without looking, what is the probability of selecting a blue marble?

A common way of measuring the dispersion of data is by calculating the

The result of an experiment is called

This question has four possible answers listed below and only one of them is correct. If you select one at random, what is the probability that you pick the correct answer?

There are basically two types of observation errors:

For normal distribution, what percent of the data will fall in the interval of one standard deviation above and below the mean? A) $50 \%$ B) $65 \%$ C) $68 \%$ D) $95 \%$