Math, asked by rk7777, 1 year ago

please give me the answers of following question immediately

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Answered by assingh

Let total sum of 19 observation be x
x/19 = 4
x = 76
Now
x+24/20 = 76+24/20 = 5
So new mean is 5.
(Remember no. Of observation increases after adding one more observation.)

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