1.

Find the mean, variance and Standard deviation for the following dat a class10-20 20-30 30-40 40-50 50-60 1.5 13 . frequency 6,15,13,7,9​

Answer»

ANSWER:

35 is the MEAN.

Step-by-step explanation:

10+20+20+30+30+40+40+50+50+60 = 350

_____________________________ ___

10 10

=35

This is RIGHT answer.



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