Three coins are tossed 200 times and we get
three heads:39 times; two heads: 58 times;
one head :67 times: 0 head: 36 times.
When there coins are tossed at random, what is the probability of getting
(i) 3 heads? (ii) 1 head? (iii) 0 head (iv) 2 heads?
Total number times coins tossed: 200
Number of times Three heads occurred: 39
Number of times Two head occurred: 58
Number of times One heads occurred: 67
Number of times No(Zero) head occurred: 36
Probability P() = 
(i). Let P(H1) be probability of getting Three heads
P (H1) = 
P (H1) = 
= 0.195
(ii). Let P(H2) be probability of getting One head
P (H2) = 
P(H2) = 
= 0.335
(iii). Let P(H3) be probability of getting No heads (zero heads)
P (H3) = 
P (H3) = 
= 0.18
(iv). Let P(H4) be probability of getting Two heads
P (H4) = 
P (H4) = 
= 0.29