Question

three coins are tossed simultaneously 200 times with the following frequency 3 heads 23, 2 heads 72, 1 head 77 no head 28 .if the three coins are simultaneously toast again find the probability of getting 3 heads 2 heads 2 tails no heads​

Answer 1

Answer:

Step-by-step explanation:

.

probability of getting 3 heads=no.of favorable outcome/total no.of outcome

=23/200

ii)probability of getting atleast 2 heads=no.of favorable outcome/total no.of outcome

=72+23/200

=95/200=19/40

iii)probability of getting 2 heads and 1tail=no.of favorable outcome/total no.of outcome

=72/200=9/25.

Answer 2

p(getting 3 heads)= 23/200

p(getting 2 heads)= 95/ 200

p(getting 2 tails)= 0 (there is no tail in the given frequency

p( getting no head) = 28/200

if u want more clearly simplify the values.....