Question

A survey was conducted to determine how people rated the quality of programming available on television. Respondents were asked to rate the overall quality from 0 (no quality at all) to 100 (extremely good quality). The stem-and-leaf display of the data is shown below. Stem Leaves 3 24 4 03478999 5 0112345 6 12566 7 01 8 9 2 Referring to Table 2-4, what percentage of the respondents rated overall television quality with a rating from 50 through 75?

Group of answer choices

56

44

11

40

Answer 1

solution:

the sample are

32, 34, 40, 43, 44, 47, 48, 49, 49, 49, 50, 51, 51, 52, 53, 54, 55, 61, 62, 65, 66, 66, 70, 71, 92

n=25

Now the number of values with a rating from 50 through 75

is 11

=11/25*100

=0.44*100

=44