Question 1

What is the median of the following set of scores: 1.3, 4.7, 2.3, 3.3, 3.0, 2.9?

Accepted Answer

A) 2.95 
B) 3.05 
C) 2.90 
D) 3.00 
A) 2.95 
B) 3.05 
C) 2.90 
D) 3.00 A

Question 2

What is the mode of the following data: 52 bowls of spaghetti, 37 bowls of cereal, 14 sandwiches, and 17 personal pizzas?

Accepted Answer

A) bowls of cereal 
B) sandwiches 
C) 52 
D) bowls of spaghetti 
A) bowls of cereal 
B) sandwiches 
C) 52 
D) bowls of spaghetti D

Question 3

What is the mode of the following data: 57 males and 43 females?

Accepted Answer

A) 57 
B) males 
C) females 
D) cannot be determined 
A) 57 
B) males 
C) females 
D) cannot be determined B

Question 4

The interval level of measurement is based on some underlying continuum.

Accepted Answer

A) True 
 B)False

Question 5

What is another term for the mean?

Accepted Answer

A) midpoint 
B) frequency 
C) arithmetic average 
D) distribution 
A) midpoint 
B) frequency 
C) arithmetic average 
D) distribution

Question 6

What is the most common average computed?

Accepted Answer

A) mode 
B) mean 
C) variance 
D) median 
A) mode 
B) mean 
C) variance 
D) median

Question 7

How would you calculate a weighted mean?

Accepted Answer

First, list all values in the sample.Sec

Question 8

What is the formula for calculating the mean? What does each of the symbols represent?

Accepted Answer

ΣX / n, where Σ represents sum

Question 9

Which of the following best describes the mode?

Accepted Answer

A) sum of all values in a group 
B) midpoint in a set of scores 
C) number of subject collected 
D) most frequently occurring value(s) 
A) sum of all values in a group 
B) midpoint in a set of scores 
C) number of subject collected 
D) most frequently occurring value(s)

Question 10

What would be your preferred measure of central tendency if you had the following data: 57 males and 23 females?

Accepted Answer

A) median 
B) weighted mean 
C) mean 
D) mode 
A) median 
B) weighted mean 
C) mean 
D) mode

Question 11

The more precise scales contain all the qualities of the scales below them.

Accepted Answer

A) True 
 B)False

Question 12

If you were to calculate the average of individual income, and you found no outliers, which measure of central tendency should you use?

Accepted Answer

A) mode 
B) median 
C) mean 
D) other 
A) mode 
B) median 
C) mean 
D) other

Question 13

Which of the following are used to define the percentage of cases equal to and below a certain point in a distribution of scores?

Accepted Answer

A) T scores 
B) Q points 
C) standard scores 
D) percentile points 
A) T scores 
B) Q points 
C) standard scores 
D) percentile points

Question 14

Which of the following defines the median?

Accepted Answer

A) sum of all values in a group 
B) most frequently occurring value 
C) average variability in a set of scores 
D) midpoint in a set of scores 
A) sum of all values in a group 
B) most frequently occurring value 
C) average variability in a set of scores 
D) midpoint in a set of scores

Question 15

What is the formula for computing the mean?

Accepted Answer

A) ΣX + n 
B) ΣY / X 
C) ΣX / n 
D) ΣN + y 
A) ΣX + n 
B) ΣY / X 
C) ΣX / n 
D) ΣN + y

Question 16

What would be your preferred measure of central tendency if you had the following data: $32,400; $42,500; $47,250; $49,570; $145,850?

Accepted Answer

A) mean 
B) median 
C) mode 
D) weighted mean 
A) mean 
B) median 
C) mode 
D) weighted mean

Question 17

Which of the following symbols represents sample size?

Accepted Answer

A) X 
B) y 
C) n 
D) M 
A) X 
B) y 
C) n 
D) M

Question 18

With regard to percentile points, what is the median also known as?

Accepted Answer

A) Q1 
B) Q2 
C) Q3 
D) Q4 
A) Q1 
B) Q2 
C) Q3 
D) Q4

Question 19

What does the symbol M represent?

Accepted Answer

A) population size 
B) sample size 
C) mean 
D) individual score 
A) population size 
B) sample size 
C) mean 
D) individual score

Question 20

While there are three measures of central tendency, the mean, median, and mode are all interchangeable anyway.

Accepted Answer

A) True 
 B)False

Exam 2: Means to an End: Computing and Understanding Averages

What is the median of the following set of scores: 1.3, 4.7, 2.3, 3.3, 3.0, 2.9?

What is the mode of the following data: 52 bowls of spaghetti, 37 bowls of cereal, 14 sandwiches, and 17 personal pizzas?

What is the mode of the following data: 57 males and 43 females?

The interval level of measurement is based on some underlying continuum.

What is another term for the mean?

What is the most common average computed?

How would you calculate a weighted mean?

What is the formula for calculating the mean? What does each of the symbols represent?

Which of the following best describes the mode?

What would be your preferred measure of central tendency if you had the following data: 57 males and 23 females?

The more precise scales contain all the qualities of the scales below them.

If you were to calculate the average of individual income, and you found no outliers, which measure of central tendency should you use?

Which of the following are used to define the percentage of cases equal to and below a certain point in a distribution of scores?

Which of the following defines the median?

What is the formula for computing the mean?

What would be your preferred measure of central tendency if you had the following data: $32,400; $42,500; $47,250; $49,570; $145,850?

Which of the following symbols represents sample size?

With regard to percentile points, what is the median also known as?

What does the symbol M represent?

While there are three measures of central tendency, the mean, median, and mode are all interchangeable anyway.

Statistics or Sadistics Its up to You

Vive La Différence: Understanding Variability

A Picture Really Is Worth a Thousand Words

Ice Cream and Crime: Computing Correlation Coefficients

Just the Truth: An Introduction to Understanding Reliability and Validity

Hypotheticals and You: Testing Your Questions

Are Your Curves Normal Probability and Why It Counts

Significantly Significant: What It Means for You and Me

Only the Lonely: The One Sample Z-Test

Tea for Two: Tests Between the Means of Different Groups

Tea for Two Again: Tests Between the Means of Related Groups

Two Groups Too Many Try Analysis of Variance

Two Too Many Factors: Factorial Analysis of Variancea Brief Introduction

Cousins or Just Good Friends Testing Relationships Using Correlation Coefficient

Predicting Wholl Win the Super Bowl: Using Linear Regression

What to Do When Youre Not Normal: CHI-Square and Some Other Nonparametric Tests

Some Other Important Statistical Procedures You Should Know About

Data Mining: An Introduction to Getting the Most Out of Your Big Data

A Statistical Software Sampler

The Ten or More Best and Most Fun Internet Sites for Statistics Stuff

The Ten Commandments of Data Collection

Filters