Question 1

A distribution that is flat is also referred to as __________.

Accepted Answer

The answer of A distribution that is flat is also...

Question 2

Which of the following is most likely to be possible?

Accepted Answer

A) making a normal curve from a bimodal distribution 
B) making a bimodal distribution from a normal curve 
C) making an ordinary frequency table from a grouped frequency table 
D) making a grouped frequency table from an ordinary frequency table

Question 3

A frequency table lists

Accepted Answer

A) the times per second variations occur in various wave bands. 
B) the number of scores at each value. 
C) the intensity of a variable over all the participants studied. 
D) the average value of each variable.

Question 4

A psychologist who constructs a frequency table to summarize data collected on the amount of stress people have experienced in the last 2½ weeks is using

Accepted Answer

A) a measure of central tendency. 
B) a descriptive statistical method. 
C) an intuitive statistical method. 
D) an inferential statistical method.

Question 5

A developmental psychologist surveyed 15 single senior citizens living in private apartments.Each participant completed a questionnaire on the number of telephone conversations he or she had in the last day.Their answers were as follows: 5,0,2,1,1,0,1,0,3,1,1,4,3,4,and 7.
a.Make a frequency table.
b.Make a histogram based on the frequency table.
c.Describe in words the shape of the histogram.

Accepted Answer

The answer of A developmental psychologist surveyed 15 single senior...

Question 6

If a difference between scores of 3 and 4 is the same as a difference between scores of 15 and 16,the variable being measured is

Accepted Answer

A) equal-interval. 
B) differential. 
C) non-differential. 
D) rank-order.

Question 7

A graph of frequencies in which the bars are adjacent to each other is a(n)__________.

Accepted Answer

The answer of A graph of frequencies in which the...

Question 8

Another way to describe a negatively skewed distribution is to say that

Accepted Answer

A) the distribution is skewed to the left. 
B) the distribution is skewed to the right. 
C) more scores are piled up at the low end of the range. 
D) it illustrates a floor effect.

Exam 1: Displaying the Order in a Group of Numbers