Question

A coin is tossed 200 times with the following outcomes:
head 112 times and tail 88 times.
What is the probability of getting a tail in a single throw of a coin ?
(a) $\frac{11}{25}$

(b) $\frac{14}{25}$

(c) $\frac{11}{14}$

(d) $\frac{14}{11}$

Answer 1

(a) $\frac{11}{25}$

Explanation:
Total number of trials = 200
Number of heads = 112
Number of tails = 88
Let E be the event of getting a tail.
P(getting a tail) = P (E) = $\frac{\mathrm{Number}\mathrm{of}\mathrm{tails}\mathrm{coming}\mathrm{up}}{\mathrm{Total}\mathrm{number}\mathrm{of}\mathrm{trials}}=\frac{88}{200}=\frac{11}{25}$