Question

Following is the number of heads of 8 coins when tossed 205 times: Number of Heads 0 1 3 7 2 6 4 5 Frequency 2 46 62 19 2 47 2 20 5 Calculate arithmetic mean (mean number of heads per toss), using Direct Method and Short-cut Method. (Ans. X = 3.15) ​

Answer 1

Answer:

Heads (X) Frequency (f) 0 2 1 19 2 46 3 62 4 47 5 20 6 5 7 2 8 2 Calculate arithmetic mean (mean number of heads per toss), using Short - cut Method.