Three coins are tossed 200 times and we get Three heads 39 times two heads 58 times One head 67 time...

Question

Three coins are tossed 200 times and we get Three heads: 39 times; two heads: 58 times;

One head: 67 times; o head: 36 times.

When three coins are tossed at random, what is the probability of getting

(i) 3 heads?

(ii) 1 head?

(iii) 0 head?

(iv) 2 heads?

Accepted Answer

It is given that Number of trials 200 Number of times 3 heads 39 Number of times 2 heads 58 Number of times 1 head 67 Number of times 0 head 36 Consider E1 E2 E3 and E4 as the events i So we get P E1 number of times 3 head number of trials By substituting the values P E1 39 200 We get P E1 0195 ii So we get P E2 number of times 1 head number of trials By substituting the values P E2 67 200 We get P E2 0335 iii So we get P E3 number of times 0 head number of trials By substituting the values P E3 36 200 We get P E3 018 iv So we get P E4 number of times 2 head number of trials By substituting the values P E4 58 200 We get P E4 029

RS Aggarwal Solutions Class 9 Mathematics Solutions for Probability Exercise 19 in Chapter 19 - Probability