Question

A coin is tossed 100 times with the following outcomes:
head 43 times and tail 57 times.
In a single throw of a coin, what is the probability of getting a head?
(a) $\frac{43}{57}$

(b) $\frac{57}{43}$

(c) $\frac{43}{100}$

(d) $\frac{7}{50}$

Answer 1

(c) $\frac{43}{100}$

Explanation:
Total number of trials = 100
Number of heads = 43
Number of tails = 57
Let E be the event of getting a head.
P(getting a head) = P (E) = $\frac{\mathrm{Number}\mathrm{of}\mathrm{heads}\mathrm{coming}\mathrm{up}}{\mathrm{Total}\mathrm{number}\mathrm{of}\mathrm{trials}}=\frac{43}{100}$