Exam 2: Exploring Data: Frequency Distributions and Graphs

Your text says that the primary use of graphs is to show results to others.

-The distribution in Data Set 2-2 is

A distribution shaped like a box is a_______________distribution; one that has two peaks is a ____________ distribution.

Describe each figure below as a frequency polygon, histogram, or line graph. -

Identify each graph below as correct or incorrect. Describe what is wrong with each incorrect one. -

Describe each graph below as correct or incorrect. Tell what is wrong with the incorrect one(s). -

Bar graphs are used more extensively in psychology textbooks and journal articles than line graphs.

The serial position effect was displayed in the text with mean errors on the ordinate and serial position on the abscissa. This graphic is an example of a

-Referring to Data Set 2-2, the number of scores in the interval 59 - 66 is

A group of American college students named as many of the 12 Canadian provinces and territories as they could. Arrange the scores into a simple frequency distribution. Draw a frequency polygon from the data. 8 , 6 , 5 , 5 , 10 , 7 , 7 , 4 , 3 , 5 , 3 , 6 , 8 , 6 , 8 , 5 , 6 , 5 , 4 , 4

The administration at Warmfuzzy University gave a 7-item questionnaire to a representative sample of seniors. Each item was a statement of intention (recommend WU to others, return after graduation, give money, and so forth). The seniors simply checked the items they intended to do. A person's score was the sum of the items checked. Arrange the scores into a simple frequency distribution. Construct a histogram. 1 2 1 3 0 4 0 5 1 2 4 0 5 0 1 3 0 1 3 6 1 2 1 2 4 7

A distribution with two separated peaks is a__________distribution; one that is normal is a ___________distribution.

Line graphs are used more extensively in psychology textbooks and journal articles than bar graphs.

Suppose a frequency distribution with a range of 0 to 100 was severely negatively skewed. The greatest frequency of scores would be clustered near

A line graph and a frequency polygon can be used interchangeably.

Suppose you had frequency counts of sparrows, starlings, swans, swallows, sandpipers, and sapsuckers. The appropriate graph for such data would be a

Describe each figure below as a frequency polygon, histogram, or line graph. -

The horizontal axis of a graph of a frequency distribution is called

The serial position effect shows that when material is learned in order, the most difficult part

Data Set 2-3 The graph in Data Set 2-3 is based on registration figures by the American Kennel Club. -Data Set 2-3