1, What is the standard deviation of the sample represented on the stem and leaf diagram below

0 | 3

1 | 1 2 5 9

2 | 4 4 8

2 Which of the following symbol represent a parameter ? MU, X or P-hat

3 What is the standard deviation of the following set of sample data( round up to 2 decimal places)

10 9 14 6 17 7

4 What is the Variance of the following set of simple data,

10 9 14 6 17 7

5 What is the third quartile of the following set of simple data.

1 1 2 8 12 13 14 15 18

6, What is the interquartile range of the following set of simple data.

5 7 11 12 13 13 14 14 16 19