Two coins are tossed 400 times and we get Two heads 112 times one head 160 times 0 head 128 times Wh...

Question

Two coins are tossed 400 times and we get Two heads 112 times one head 160 times 0 head 128 times When two coins are tossed at random what is the probability of getting i 2 heads ii 1 head iii 0 head

Accepted Answer

It is given that Number of trials 400 Number of times 2 head 112 Number of times 1 head 160 Number of times 0 head 128 Take E1 E2 and E3 as the events i So we get P E1 number of times 2 head number of trials By substituting the values P E1 112 400 We get P E1 028 ii So we get P E2 number of times 1 head number of trials By substituting the values P E2 160 400 We get P E2 04 iii So we get P E3 number of times 0 head number of trials By substituting the values P E3 128 400 We get P E3 032

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