Question

Find s. Consider the set of differences between two dependent​ sets: 84,​ 85, 83,​ 63, 61,​ 100, 98. Round to the nearest tenth.

Answer 1

s is
`s =15.3`

Explanation:

From the question we are told that

The data is

Generally the mean is evaluated as

`\= x = (84+ 85+ 83+​ 63+ 61+​100+ 98)/(7)`

`\= x = 82`

The standard deviation is mathematically represented as

`s = (\sum (x- \= x)^2)/(n-1)`

`s =\sqrt{ ( (84-82)^2+​ (85-82)^2 +( 83-82 )^2 +(​63-82) ^2 + ( 61-82)^2,+ (100-82)^2 + (98-82)^2)/(7-1)}`

`s =15.3`