Question

1e) Use the given data to compute the following statistic: 46, 51, 63, 65, 74, 46, 58, 70, 43 The 85th percentile... P85

1f) Use the given data to compute the RANGE: 46, 51, 63, 65, 74, 46, 58, 70, 43

1g) Use the given data to compute the VARIANCE: 46, 51, 63, 65, 74, 46, 58, 70, 43

1h) Use the given data to compute the STANDARD DEVIATION: 46, 51, 63, 65, 74, 46, 58, 70, 43

No Handwriting please, type your answer.

Answer 1

1.e.

1f. The range is the difference between the highest and lowest values in the data set.

Ordering the data from least to greatest, we get:

43   46   46   51   58   63   65   70   74   

The lowest value is 43.

The highest value is 74.

The range = 74 - 43 = 31.

1g. To find variance first we need to find mean

Create the following table.

data	data-mean	(data - mean)2
46	-11.3333	128.44368889
51	-6.3333	40.11068889
63	5.6667	32.11148889
65	7.6667	58.77828889
74	16.6667	277.77888889
46	-11.3333	128.44368889
58	0.6667	0.44448889
70	12.6667	160.44528889
43	-14.3333	205.44348889

So

1h.