FiltersDone

Question type

Essay

Multiple Choice

Short Answer

True False

Matching

Exam 4: Measures of Variability

Show Answer

Share

---

All types

Filters

Study FlashcardsPractice ExamLearn

Question 21

Multiple Choice

Review LaterAdd Note

Review Later

Given the following distribution of quiz scores for a statistics course: 87, 91, 74, 73, 80, 84, 68, 75 What is the standard deviation?

A) 2.71
B) 2.60
C) 6.11
D) 7.35

Correct Answer

verified

Show Answer

Question 22

Short Answer

Review LaterAdd Note

Review Later

The question below refers to the following situation: Below are two distributions of final scores for separate statistics courses. The first is from the Fall term, the second is from the Spring term. The mean for the Fall is __________.

Correct Answer

verified

Show Answer

Question 23

True/False

Review LaterAdd Note

The standard deviation is a more precise measure of variation than the range.

The question below refers to the following situation: Below are two distributions of final scores for separate statistics courses. The first is from the Fall term, the second is from the Spring term. The standard deviation for the Fall is __________.

The question below refers to the following situation: Below are two distributions of final scores for separate statistics courses. The first is from the Fall term, the second is from the Spring term. The standard deviation for the Spring is __________.

Scores that have a small standard deviation are relatively inconsistent.

The question below refers to the following situation: Below are two distributions of final scores for separate statistics courses. The first is from the Fall term, the second is from the Spring term. The variance for the Spring is __________.

The question below refers to the following situation: Below are two distributions of final scores for separate statistics courses. The first is from the Fall term, the second is from the Spring term. The mean for the Spring is __________.

A normal (symmetrical) distribution has no variability.

The question below refers to the following situation: A university's administration is interested in understanding students' study habits. The School randomly surveys 13 students and asks them how much time per weeknight they Typically spend studying. The following are the responses in minutes: 60, 90, 120, 120, 150, 180, 180, 180, 180, 210, 240, 270, 300 Calculate the variance.

The range and standard deviation are always identical.

The higher the standard deviation, the greater the variation.

The standard deviation measures the degree of variability in a distribution.

Given the following distribution of quiz scores for a statistics course: 87, 91, 74, 73, 80, 84, 68, 75 What is the variance?

The question below refers to the following situation: Below are two distributions of final scores for separate statistics courses. The first is from the Fall term, the second is from the Spring term. The variance for the Fall is __________.

The difference between the highest and the lowest values in a distribution of scores is known As the:

A synonym for variability is:

The question below refers to the following situation: A university's administration is interested in understanding students' study habits. The School randomly surveys 13 students and asks them how much time per weeknight they Typically spend studying. The following are the responses in minutes: 60, 90, 120, 120, 150, 180, 180, 180, 180, 210, 240, 270, 300 Calculate the range.