Five coins were simultaneously tossed 1000 times and at each toss the number of heads were observed. The number of tosses during which 0, 1, 2, 3, 4 and 5 heads were obtained are shown in the table below. Find the mean number of heads per toss. No. of heads per toss, No. of tosses 0 1 2 3 4 5, 38 144 342 287 164 25 Total, 1000

Explanation

`therefore "Mean number of heads per toss"= (sum fx) / (sumf) `
`=2470/1000`
`=2.470`