1.

Let the mean and variance of the frequency distributionx:x1=2x2=6x3=8x4=9f:44αβbe 6 and 6.8 respectively. If x3 is changed from 8 to 7, then the mean for the new data will be

Answer»

Let the mean and variance of the frequency distribution

x:x1=2x2=6x3=8x4=9f:44αβ

be 6 and 6.8 respectively. If x3 is changed from 8 to 7, then the mean for the new data will be



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