Question

For each of the following data sets, use your calculator to help find the interquartile range and the
population standard deviation. Show your calculation for the IQR. Round all non-integer values to the
nearest tenth.
(a) 4, 6, 8, 10, 15, 19.22, 25
(b) 3.3,4,5,5,6,6,7,7,8

Answer 1

Answer:

(PART A)

Range: 21

(IQR) Interquartile range: 3.22

(PART B)

Range: 4.7

(IQR) Interquartile range: 2.5

Step-by-step explanation:

For (A):

4, 6, 8, 10, 15, 9.22, 25

Median: 10

Lower Quartile(Q1): 6

Upper Quartile(Q2): 9.22

(IQR) Interquartile range: 9.22 - 6 = 3.22

Range: 25 - 4 = 21

For (B):

3.3, 4, 5, 5, 6, 6, 7, 7, 8

Median: 6

Lower Quartile (Q1): 4.5

Upper Quartile (Q2): 7

(IQR) Interquartile range: 7 - 4.5 = 2.5

Range: 8 - 3.3 = 4.7

~phew! this took me long to type, anyway hope this helps you~

-please mark me the brainliest, I would highly appreciate it-