Question

Solve 4th one plzzzz

Answer 1

Answer:

25

Step-by-step explanation:

$mean = \frac{sum \: of \: all \: observation}{total \: number \: of \: observation}$

here, no. of observation (n)= 10

mean = 20

x = let x be sum of all observation

20 = x/10

x = 200

$new \: mean = \frac{np \: + \: x}{total \: number \: of \: observation}$

where, n = number of observation

p = deviation of each observation

here, p = 5

n = 10

new mean = 10 × 5 + 200 / 10

new mean = 25

therefore, required mean is 25

hope you understand the answer.

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