Question 1

The key difference between the binomial and hypergeometric distribution is that with the hypergeometric distribution

Accepted Answer

A) the probability of success must be less than 0.5 
B) the probability of success changes from trial to trial 
C) the trials are independent of each other 
D) the random variable is continuous 
A) the probability of success must be less than 0.5 
B) the probability of success changes from trial to trial 
C) the trials are independent of each other 
D) the random variable is continuous

Question 2

The standard deviation is the

Accepted Answer

A) variance squared 
B) square root of the sum of the deviations from the mean 
C) same as the expected value 
D) positive square root of the variance 
A) variance squared 
B) square root of the sum of the deviations from the mean 
C) same as the expected value 
D) positive square root of the variance

Question 3

A local university reports that 10% of their students take their general education courses on a pass/fail basis. Assume that fifteen students are registered for a general education course.
a.What is the expected number of students who have registered on a pass/fail basis?
b.What is the probability that exactly five are registered on a pass/fail basis?
c.What is the probability that more than four are registered on a pass/fail basis?
d.What is the probability that less than two are registered on a pass/fail basis?

Accepted Answer

a.1.5
b.0.

The key difference between the binomial and hypergeometric distribution is that with the hypergeometric distribution

The standard deviation is the

Data and Statistics

Descriptive Statistics: Tabular and Graphical Displays

Descriptive Statistics: Numerical Measures

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

Regression Analysis: Model Building

Time Series Analysis and Forecasting

Nonparametric Methods

Statistical Methods for Quality Control

Index Numbers

Decision Analysis on Website

Sample Survey on Website

Filters

Exam 5: Discrete Probability Distributions

The key difference between the binomial and hypergeometric distribution is that with the hypergeometric distribution

The standard deviation is the

Data and Statistics

Descriptive Statistics: Tabular and Graphical Displays

Descriptive Statistics: Numerical Measures

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

Regression Analysis: Model Building

Time Series Analysis and Forecasting

Nonparametric Methods

Statistical Methods for Quality Control

Index Numbers

Decision Analysis on Website

Sample Survey on Website

Filters