Question 1

Your current exam mean is 93.2.If you receive an 87 on the next exam, this will have the effect of ______.

Accepted Answer

A) increasing your mean 
B) decreasing your mean 
C) having no effect on your mean 
D) cannot determine 
A) increasing your mean 
B) decreasing your mean 
C) having no effect on your mean 
D) cannot determine

Question 2

The ordinal level of measurement stands for order.

Accepted Answer

A) True 
 B)False

Question 3

What is the symbol used to represent the mean?

Accepted Answer

A) N 
B) n 
C)  $$\bar { x }$$ 
D) X 
A) N 
B) n 
C)  $$\bar { x }$$ 
D) X

Question 4

When is the mode the best measure of central tendency to use?

Accepted Answer

The mode should be u

Question 5

What is another way of describing "measures of central tendency"?

Accepted Answer

A) statistical measures 
B) measures of variability 
C) averages 
D) deviation scores 
A) statistical measures 
B) measures of variability 
C) averages 
D) deviation scores

Question 6

The ratio level is the most precise level of measurement.

Accepted Answer

A) True 
 B)False

Question 7

What would be your preferred measure of central tendency if you had the following data: $31,550; $33,750; $34,700; $37,550; $39,275?

Accepted Answer

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

Question 8

What is meant by the term outlier?

Accepted Answer

An outlier refers to

Question 9

What is the mean value of the following scores: 1.11, 1.17, 1.15, 2.02, 2.07, 3.11, 2.14?

Accepted Answer

A) 2.14 
B) 2.07 
C) 1.74 
D) 1.82 
A) 2.14 
B) 2.07 
C) 1.74 
D) 1.82

Question 10

The ratio level of measure does have a zero on the scale.

Accepted Answer

A) True 
 B)False

Question 11

This measure of central tendency can be considered the most precise.

Accepted Answer

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

Question 12

What is the name of the letter Σ

Accepted Answer

A) phi 
B) rho 
C) sigma 
D) alpha 
A) phi 
B) rho 
C) sigma 
D) alpha

Question 13

What is the mean value for the following scores: 10, 35, 40, 60, 55, 25, 50?

Accepted Answer

A) 45 
B) 44.17 
C) 40 
D) 39.29 
A) 45 
B) 44.17 
C) 40 
D) 39.29

Question 14

What is the 75th percentile also known as?

Accepted Answer

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

Question 15

Which of the following symbols represents the individual score?

Accepted Answer

A) X 
B) n 
C) N 
D) Σ 
A) X 
B) n 
C) N 
D) Σ

Question 16

The ______ value that best represents an entire group of scores.

Accepted Answer

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

Question 17

A researcher should use the mode as a measure of central tendency when the data are qualitative in nature.

Accepted Answer

A) True 
 B)False

Question 18

What is the median for the following amounts: $11.75, $12.75, $13.00, $10.75, $11.50, $10.50, $10.75?

Accepted Answer

A) $11.50 
B) $11.75 
C) $11.57 
D) $11.00 
A) $11.50 
B) $11.75 
C) $11.57 
D) $11.00

Question 19

When is the ordinal level of measurement the correct level of measurement to use?

Accepted Answer

When we measure a variable tha

Question 20

When is the ratio level of measurement the correct level of measurement to use?

Accepted Answer

When we measure a variable tha

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

Your current exam mean is 93.2.If you receive an 87 on the next exam, this will have the effect of ______.

The ordinal level of measurement stands for order.

What is the symbol used to represent the mean?

When is the mode the best measure of central tendency to use?

What is another way of describing "measures of central tendency"?

The ratio level is the most precise level of measurement.

What would be your preferred measure of central tendency if you had the following data: $31,550; $33,750; $34,700; $37,550; $39,275?

What is meant by the term outlier?

What is the mean value of the following scores: 1.11, 1.17, 1.15, 2.02, 2.07, 3.11, 2.14?

The ratio level of measure does have a zero on the scale.

This measure of central tendency can be considered the most precise.

What is the name of the letter Σ

What is the mean value for the following scores: 10, 35, 40, 60, 55, 25, 50?

What is the 75th percentile also known as?

Which of the following symbols represents the individual score?

The ______ value that best represents an entire group of scores.

A researcher should use the mode as a measure of central tendency when the data are qualitative in nature.

What is the median for the following amounts: $11.75, $12.75, $13.00, $10.75, $11.50, $10.50, $10.75?

When is the ordinal level of measurement the correct level of measurement to use?

When is the ratio level of measurement the correct level of measurement to use?

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