Question

Following is the number of heads of 8 coins when tossed 205 times. Number of heads 0 1 2 3 4 5 6 7 8
Frequency 2 19 46 62 47 20 5 2 2 Calculate arithmetic mean (mean number of heads per toss) using direct and shortcut method

Answer 1

Answer:

helo guys its your answer

Explanation:

..

2 3 4 (A) 5 6 7 8, 2 19 46 62 47 20 5 2 2, 0 19 92 186 188 100 30 14 16, −4 −3 −2 −1 0 1 2 3 4, −8 −57 −92 −62 0 20 10 6 8. Σf = 205

Answer 2

Answer:

By Assumed Method ( shortcut )

X = A+£fd by £f

Answer : 3.15