Math, asked by aftab29, 1 year ago

the mean of a group is 25 and fixi=250 find the number of observation

Answers

Answered by Ruhi9871

1

10 is the no. of observation

Answered by Harish2002

2

fixi/fi=25
250/fi=25
250/25=fi
fi=10
no of observations=10

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