Calculate, to the nearest hundredth, the sample standard deviation for each of the shown data sets.
ik M
Data Set 1
25
22
28
51
26
28
29
Data Set 2
21
27
19
26
24
23
28
ad or
.
Adata set 1: s=8.36, data set 2: s=2.85
Bdata set 1: s=8.94,data set 2: s=3.04
Cdata set 1: s=8.94,data set 2: s=2.85
Ddata set 1: s=69.86, data set 2: s=8.11
Edata set 1: s=79.84, data set 2: s=9.27
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Turnir
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Which of these statements helps explain the large difference between the
sample standard deviations for the two data sets?
nments
to Suma

When you round you wanna find the tenth biggest difference between you and your parents that are not really easy to get

b is the correct answer

x^2 + 81

we can factor this using difference of square binomials.

rewrite the equation:

x^2 - (-81)

factor:

(a^2 - b^2) = (√a^2 + √b^2)(√a^2 - √b^2)

(x^2 - (-81) = (x + √-81)(x - √-81)

we can remove the - from under the radical by multiplying it by i.

(x^2 - (-81) = (x + i√81)(x - i√81)

(x^2 - (-81) = (x + 9i)(x - 9i)

we can check our answer by using foil:

x^2 - 9ix + 9ix - 81i^2

x^2 - 81^2

i^2 = -1

x^2 + 81