Question

each)
1) If the mean of the observations 14, 18, 22, x and 16 is 18, then x =
A. 17
B. 20 C. 15 D. 22

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Answer 1

Answer:

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Step-by-step explanation:

option A ) 17

As we know,

x = x1 +x2 +....+xn / n

here

x =18

n=5

So, 18= 16+14+x+23+20 / 5

∴90=73+x

∴x=90−73

x=17