Exam 7: Continuous Probability Distributions

Explore all topics

A(n) ____________________ random variable has a density function that looks like a rectangle and you can use areas of a rectangle to find probabilities for it.

(Short Answer)

4.8/5

(36)

Question 141

Subway Waiting Time: At a subway station the waiting time for a subway is found to be uniformly distributed between 1 and 5 minutes. -What is the probability that the subway arrives in the first minute and a half?

(Short Answer)

4.8/5

(43)

Question 142

The shape of an F distribution is ____________________.

(Short Answer)

4.9/5

(25)

Question 143

Subway Waiting Time: At a subway station the waiting time for a subway is found to be uniformly distributed between 1 and 5 minutes. -What is the probability density function for this uniform distribution?

(Short Answer)

4.8/5

(33)

Question 144

The number of parameters for an F distribution is:

(Multiple Choice)

4.9/5

(34)

Question 145

Suppose f(x) = 1/4 over the range a $\le$ x $\le$ b, and suppose P(X > 4) = 1/2. What are the values for a and b?

(Multiple Choice)

4.8/5

(45)

Question 146

To find the probability for a uniform random variable you take the times the of its corresponding rectangle.

(Short Answer)

4.8/5

(36)

Question 147

As the ____________________ degrees of freedom increase, the mean of the F distribution approaches 1.

(Short Answer)

4.8/5

(35)

Question 148

Diet: Researchers studying the effects of a new diet found that the weight loss over a one-month period by those on the diet was normally distributed with a mean of 10 pounds and a standard deviation of 5 pounds. -If a dieter is selected at random, what is the probability that the dieter lost more than 7.5 pounds?

(Short Answer)

4.9/5

(29)

Question 149

Showing 141 - 149 of 149

A(n) ____________________ random variable has a density function that looks like a rectangle and you can use areas of a rectangle to find probabilities for it.

Subway Waiting Time: At a subway station the waiting time for a subway is found to be uniformly distributed between 1 and 5 minutes. -What is the probability that the subway arrives in the first minute and a half?

The shape of an F distribution is ____________________.

Subway Waiting Time: At a subway station the waiting time for a subway is found to be uniformly distributed between 1 and 5 minutes. -What is the probability density function for this uniform distribution?

The number of parameters for an F distribution is:

Suppose f(x) = 1/4 over the range a $\le$ x $\le$ b, and suppose P(X > 4) = 1/2. What are the values for a and b?

To find the probability for a uniform random variable you take the times the of its corresponding rectangle.

As the ____________________ degrees of freedom increase, the mean of the F distribution approaches 1.

What Is Statistics

Graphical and Tabular Descriptive Techniques

Numerical Descriptive Techniques

Data Collection and Sampling

Probability

Random Variables and Discrete Probability Distributions

Sampling Distributions

Introduction to Estimation

Introduction to Hypothesis Testing

Inference About a Population

Inference About Comparing Two Populations, Part 1

Inference About Comparing Two Populations, Part 2

Analysis of Variance

Chi-Squared Tests

Simple Linear Regression and Correlation

Multiple Regression

Review of Statistical Inference

Filters

Exam 7: Continuous Probability Distributions

A(n) ____________________ random variable has a density function that looks like a rectangle and you can use areas of a rectangle to find probabilities for it.

Subway Waiting Time: At a subway station the waiting time for a subway is found to be uniformly distributed between 1 and 5 minutes. -What is the probability that the subway arrives in the first minute and a half?

The shape of an F distribution is ____________________.

Subway Waiting Time: At a subway station the waiting time for a subway is found to be uniformly distributed between 1 and 5 minutes. -What is the probability density function for this uniform distribution?

The number of parameters for an F distribution is:

Suppose f(x) = 1/4 over the range a ≤\le≤ x ≤\le≤ b, and suppose P(X > 4) = 1/2. What are the values for a and b?

To find the probability for a uniform random variable you take the ____________________ times the ____________________ of its corresponding rectangle.

As the ____________________ degrees of freedom increase, the mean of the F distribution approaches 1.

What Is Statistics

Graphical and Tabular Descriptive Techniques

Numerical Descriptive Techniques

Data Collection and Sampling

Probability

Random Variables and Discrete Probability Distributions

Sampling Distributions

Introduction to Estimation

Introduction to Hypothesis Testing

Inference About a Population

Inference About Comparing Two Populations, Part 1

Inference About Comparing Two Populations, Part 2

Analysis of Variance

Chi-Squared Tests

Simple Linear Regression and Correlation

Multiple Regression

Review of Statistical Inference

Filters

Suppose f(x) = 1/4 over the range a $\le$ x $\le$ b, and suppose P(X > 4) = 1/2. What are the values for a and b?

To find the probability for a uniform random variable you take the times the of its corresponding rectangle.