Math, asked by neer770, 1 year ago

The mean of 10 observations was calculated as 40. It was detected on rechecking that the
value of 45 was wrongly copied as 15. Find the correct mean.​

Answers

Answered by akkujohann
3

40 = x/10

x = 400

but correction is x + 30

hence, mean = 430/10

mean  = 43

Answered by aashu209
3

Answer:

430

Step-by-step explanation:

= 10×40-15+45

=400-15+45

=445-15

=430

SO THE CORRECT MEAN IS 430

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