For the following data:

(a) Find the mean, variance, and standard deviation.
(b) Construct a frequency table with five classes.
(c) Using the grouped data formula, find the mean, variance, and standard deviation for the frequency table constructed in part (b) and compare it to the results in part (a).

Transcribed Image Text:

6.3 2.9 4.5 1.1 1.8 4.0 1.2 2.0 4.0 3.1 2.8 2.4 7.0 4.5 2.8 4.3 5.3 2.9 4.4 3.1 5.6 3.5 8.3 3.7 0.5 4.5 6.2 3.0 5.7 0.9