Question

The following table gives height of certain persons:
Height (inches) 57 59 61 63 65 67 69 71 73
Number of Persons 1 3 7 10 11 15 107
Calculate arithmetic mean.
(Ans. X = 65.82" approx.
Following is the number of heads of 8 coins when tossed 205 times:
Number of Heads 0 11 12 13 14 15 16 17
Frequency
2 19 46 62 47 20 5 2 2
Calculate arithmetic mean (mean number of heads per toss), using Direct Method and Short-cut
Method.
(Ans. X = 3.15
Calculation of Simple Arithmetic Mean
in Case of Frequency Distribution
In case of a frequency distribution,
different class intervals like
has its frequency. There are
Must be
embering
hat in a frequency​

Answer 1

Explanation:

आंसर भेज दो प्लीज भैया

Answer 2

Answer:

The right answer of arithmetic mean is 65.82"approx