n a quot;bell-shaped curvequot; distribution, _____ occur(s). Question 1 options: a) more than one mode always. b) a normal level of kurtosis c) a...

n a "bell-shaped curve" distribution, _____ occur(s).

Question 1 options:

a) 

more than one mode always.

b) 

a normal level of kurtosis

c) 

a higher-than-normal level of kurtosis.

d) 

two peaks

SaveQuestion 2 (10 points)

In the five steps to make a frequency distribution table, the last step is to:

Question 2 options:

a) 

organize the data.

b) 

communicate clearly.

c) 

decide the width and number of intervals.

d) 

decide what information to include in the table.

SaveQuestion 3 (10 points)

_____ answer the question "How many?"

Question 3 options:

a) 

Discrete numbers

b) 

Nominal numbers

c) 

Continuous numbers

d) 

Ratio numbers

SaveQuestion 4 (10 points)

When calculating fc , one needs to:

Question 4 options:

a) 

add up the frequencies at or below a given value of a variable.

b) 

take the average of the percentages at a given value of a variable.

c) 

take the average of the frequencies at a given value of a variable.

d) 

add up the frequencies at or above a given value of a variable.

SaveQuestion 5 (10 points)

The bare minimum of what goes into a grouped frequency distribution table is the:

Question 5 options:

a) 

frequency and the percentage.

b) 

title and the frequency.

c) 

interval and the frequency.

d) 

interval and the percentage.

SaveQuestion 6 (10 points)

Which measure of central tendency takes information about differences between scores into account?

Question 6 options:

a) 

median

b) 

variance

c) 

range

d) 

mean

SaveQuestion 7 (10 points)

Find the mode in the following set of data: 6, 1, 2, 7, 9, 8, and 6.

Question 7 options:

a) 

1.00

b) 

6.00

c) 

2.00

d) 

7.00

SaveQuestion 8 (10 points)

A professor is reviewing the distribution of test grades on the last exam. The grades are as follows 81, 82, 90, 100, 84, 70, 87, 80, 78, 73, 100, 88, 97, 98, and 81. What is the mode of the exam grades?

Question 8 options:

a) 

81

b) 

both 81 and 100

c) 

both 81 and 84

d) 

100

SaveQuestion 9 (10 points)

Which measure of central tendency balances negative deviation scores on one side with positive deviation scores on the other?

Question 9 options:

a) 

median

b) 

mean

c) 

range

d) 

variance

SaveQuestion 10 (10 points)

Sasha obtains nominal-level data on people's favorite types of pets. What measure of central tendency would be appropriate to report?

Question 10 options:

a) 

variance

b) 

mean

c) 

mode

d) 

range