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Siva Raj

· started a discussion

· 1 Months ago

qqwer (Question:113545.0)

want clear explanation\

Question:

The mean of 19 observations is 30. Two more observations are made and the values of these are 28 and 32. The mean of the 21 observations taken together is equal to:

Options:
A) 28
B) 30
C) 32
D) 34
Solution:
Ans: (b)

median of 21 observations

= \(\frac{19 \times 30 + 28 + 32}{21}\)

=30

Knowledge Expert

· commented

· 1 Months ago

Dear student,
We have updated the solution.
Keep learning,
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