Exam 6: Continuous Random Variables

If the distances between the ordered data values are proportional to the distances between the actual values,then the normal probability plot will be a straight line.

(True/False)

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Question 21

The price-to-earnings ratio for firms in a given industry is distributed according to the normal distribution.In this industry,a firm with a standard normal variable value of z = 1

(Multiple Choice)

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Question 22

The normal probability distribution is a discrete probability distribution.

(True/False)

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Question 23

Values of the standard normal random variable are measured

(Multiple Choice)

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Question 24

A property of continuous distributions is that

(Multiple Choice)

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Question 25

The actual weight of hamburger patties is an example of a continuous random variable.

(True/False)

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Question 26

In a statistical study,the random variable X = 1 if the house is colonial,and X = 0 if the house is not colonial.The random variable X is continuous.

(True/False)

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Question 27

A continuous probability distribution having a rectangular shape,where the probability is evenly distributed over an interval of numbers,is called a uniform probability distribution.

(True/False)

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Question 28

The standardized normal quantile value O_i is the z value that gives an area of i/(n − 1)to its right under the normal curve.

(True/False)

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Question 29

A continuous random variable may assume only integer values in a given interval.

(True/False)

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Question 30

All continuous random variables are normally distributed.

(True/False)

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Question 31

For a continuous random variable x,the height of the probability curve f(x)at a particular point indicates the value of the probability for that value.

(True/False)

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Question 32

The area under the normal curve between z = 0 and z = 1 is ________________ the area under the normal curve between z = 1 and z = 2.

(Multiple Choice)

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Question 33

The mean of a standard normal distribution is always equal to 1.

(True/False)

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Question 34

The mean life of a pair of shoes is 40 months with a standard deviation of 8 months.If the life of the shoes is normally distributed,how many pairs of shoes out of one million will need replacement before 36 months?

(Multiple Choice)

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Question 35

The ___________ is a graphic that is used to check visually whether data come from a normal population.

(Multiple Choice)

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Question 36

The number of defective pencils in a lot of 1000 is an example of a continuous random variable.

(True/False)

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Question 37

The _____________ distribution would most likely be used to describe the distribution of time between arrivals of customers at the grocery store.

(Multiple Choice)

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Question 38

The mean and median are the same for an exponential distribution.

(True/False)

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Question 39

The exponential probability distribution is based on a continuous random variable.

(True/False)

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Question 40

Showing 21 - 40 of 40

If the distances between the ordered data values are proportional to the distances between the actual values,then the normal probability plot will be a straight line.

The price-to-earnings ratio for firms in a given industry is distributed according to the normal distribution.In this industry,a firm with a standard normal variable value of z = 1

The normal probability distribution is a discrete probability distribution.

Values of the standard normal random variable are measured

A property of continuous distributions is that

The actual weight of hamburger patties is an example of a continuous random variable.

In a statistical study,the random variable X = 1 if the house is colonial,and X = 0 if the house is not colonial.The random variable X is continuous.

A continuous probability distribution having a rectangular shape,where the probability is evenly distributed over an interval of numbers,is called a uniform probability distribution.

The standardized normal quantile value O_i is the z value that gives an area of i/(n − 1)to its right under the normal curve.

A continuous random variable may assume only integer values in a given interval.

All continuous random variables are normally distributed.

For a continuous random variable x,the height of the probability curve f(x)at a particular point indicates the value of the probability for that value.

The area under the normal curve between z = 0 and z = 1 is ________________ the area under the normal curve between z = 1 and z = 2.

The mean of a standard normal distribution is always equal to 1.

The mean life of a pair of shoes is 40 months with a standard deviation of 8 months.If the life of the shoes is normally distributed,how many pairs of shoes out of one million will need replacement before 36 months?

The ___________ is a graphic that is used to check visually whether data come from a normal population.

The number of defective pencils in a lot of 1000 is an example of a continuous random variable.

The _____________ distribution would most likely be used to describe the distribution of time between arrivals of customers at the grocery store.

The mean and median are the same for an exponential distribution.

The exponential probability distribution is based on a continuous random variable.

An Introduction to Business Statistics

Descriptive Statistics: Tabular and Graphical Methods

Descriptive Statistics: Numerical Methods

Probability

Discrete Random Variables

Sampling and Sampling Distributions

Confidence Intervals

Hypothesis Testing

Statistical Inferences for Means and Proportions

Statistical Inferences for Population Variances

Experimental Design and Analysis of Variance

Chi-Square Tests

Simple Linear Regression Analysis

Multiple Regression and Model Building

Time Series Forecasting and Index Numbers

Nonparametric Methods

Decision Theory

Filters

Exam 6: Continuous Random Variables

If the distances between the ordered data values are proportional to the distances between the actual values,then the normal probability plot will be a straight line.

The price-to-earnings ratio for firms in a given industry is distributed according to the normal distribution.In this industry,a firm with a standard normal variable value of z = 1

The normal probability distribution is a discrete probability distribution.

Values of the standard normal random variable are measured

A property of continuous distributions is that

The actual weight of hamburger patties is an example of a continuous random variable.

In a statistical study,the random variable X = 1 if the house is colonial,and X = 0 if the house is not colonial.The random variable X is continuous.

A continuous probability distribution having a rectangular shape,where the probability is evenly distributed over an interval of numbers,is called a uniform probability distribution.

The standardized normal quantile value Oi is the z value that gives an area of i/(n − 1)to its right under the normal curve.

A continuous random variable may assume only integer values in a given interval.

All continuous random variables are normally distributed.

For a continuous random variable x,the height of the probability curve f(x)at a particular point indicates the value of the probability for that value.

The area under the normal curve between z = 0 and z = 1 is ________________ the area under the normal curve between z = 1 and z = 2.

The mean of a standard normal distribution is always equal to 1.

The mean life of a pair of shoes is 40 months with a standard deviation of 8 months.If the life of the shoes is normally distributed,how many pairs of shoes out of one million will need replacement before 36 months?

The ___________ is a graphic that is used to check visually whether data come from a normal population.

The number of defective pencils in a lot of 1000 is an example of a continuous random variable.

The _____________ distribution would most likely be used to describe the distribution of time between arrivals of customers at the grocery store.

The mean and median are the same for an exponential distribution.

The exponential probability distribution is based on a continuous random variable.

An Introduction to Business Statistics

Descriptive Statistics: Tabular and Graphical Methods

Descriptive Statistics: Numerical Methods

Probability

Discrete Random Variables

Sampling and Sampling Distributions

Confidence Intervals

Hypothesis Testing

Statistical Inferences for Means and Proportions

Statistical Inferences for Population Variances

Experimental Design and Analysis of Variance

Chi-Square Tests

Simple Linear Regression Analysis

Multiple Regression and Model Building

Time Series Forecasting and Index Numbers

Nonparametric Methods

Decision Theory

Filters

The standardized normal quantile value O_i is the z value that gives an area of i/(n − 1)to its right under the normal curve.