Author Question: When single points are used to designate the frequency of each score, the points being connected ... (Read 60 times)

JMatthes · **on:** Jun 20, 2018

When single points are used to designate the frequency of each score, the
points being connected by a series of straight lines, this is called a

a. frequency polygon
b. frequency rectangle
c. scatter plot
d. histogram

Question 2

If 15 participants take a pretest and a posttest and have a mean difference score of 1.5, and if the standard deviation of the comparison distribution is 0.5, the t score is

A) 0.5 / 1.5 = 0.33
B) 1.5 / 15 = 0.10
C) 1.5 / 0.5 = 3
D) 1.5 / 0.52 = 6