Mathematics, 07.05.2021 01:10 monicagalarza

What is the standard deviation for the data given: 5,10,7,12,0,20,15,22,8,2

Answers

Answer from: Quest

(d)

step-by-step explanation:

given: the line in the graph passes through points (5,30) and (6,26).

then, the equation of line is:

$y-y_{1}=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}(x-x_{1})$

$y-30=\frac{26-30}{6-5}(x-5)$

$y-30=-4(x-5)$

$y-30=-4x+20$

$y=-4x+50$

now, put y=a(n) and x=n,

$a(n)=-4n+50$

$a(n)=-4n+46+4$

$a(n)=46-(n-1){\times}4$

hence, option d is correct.

Ascientist cools some water at a constant rate. the graph and table show how the temperature of the

Answer from: Quest

step-by-step explanation:

Lengths of newborn girls are normally distributed with a mean of 49.2 cm and a standard deviation of

Answer from: Quest

,jkulgiurutrjyftkugyi.uykujuyxjdkytuf,yukj

step-by-step explanation:

Answer from: Quest

10 - 8 = -2

8 - 6 = -2

etc, so -2 is the common difference

step-by-step explanation:

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