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3 years ago

X divided by 4 plus 2 equals 14.75

Mathematics

2 answers:

gayaneshka [121]3 years ago

7 0

Answer:

88.5

Step-by-step explanation:

4 +2 = 6/x=14.75

14.75 x6 =x

X=88.5

kkurt [141]3 years ago

5 0

Answer: 14.75

Step-by-step explanation:

x divided by 4

=14.75

that answer is true

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3 years ago

12.4. Measure of Dispersion 2076 Q.No. 15 Find the standard deviation of: 4, 6, 8, 10, 12.

Alenkinab [10]

Answer:

Standard deviation of given data = 3.16227

Step-by-step explanation:

Step(i):-

Given sample size 'n' = 5

Given data 4, 6,8,10,12

$Mean = \frac{4+6+8+10+12}{5} = 8$

Mean of the sample x⁻ = 8

Standard deviation of the sample

$S.D = \sqrt{\frac{Sum(x-x^{-} )^{2} }{n-1}}$

Step(ii):-

Given data

x : 4 6 8 10 12

x-x⁻ : 4 - 8 6-8 8-8 10-8 12-8

(x-x⁻) : -4 -2 0 2 4

(x-x⁻)² : 16 4 0 4 16

$S.D = \sqrt{\frac{Sum(x-x^{-} )^{2} }{n-1}}$

$S.D = \sqrt{\frac{16+4+0+4+16}{4}}$

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Final answer:-

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2 years ago

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3 years ago

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Yuki888 [10]

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Step-by-step explanation:

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