For the sample quiz scores in Problem 6, find the mean and standard deviation using the data

(A) Without grouping.

(B) Grouped, with class interval of width 2, starting at 9.5.

Data from Problem 6

Given the sample of 25 quiz scores listed in the following table from a class of 500 students:

Construct a frequency table using a class interval of width 2, starting at 9.5.

Construct a histogram.

Construct a frequency polygon.

Construct a cumulative frequency and relative cumulative frequency table.

Construct a cumulative frequency polygon.

Transcribed Image Text:

Quiz Scores 14 19 15 12 16 13 15 13 14 14 16 14 12 13 16 15 17 14 11 17 17 15 14 15 14