Question

Two coins are tossed simultaneously 1000 times, and we get two heads 305 times and one head 275 times. Let a be the event of getting one tail at least. Find probability of the event

a.

Answer 1

Answer:

Step-by-step explanation:

Number of times two tails appeared = 1000 - 305 - 275 = 420

Number of times 1 tail appeared = 275

Number of times either 1 tail or 2 tails appeares = 695

Probability = 695 / 1000 = 0.695