Question

three coins are tossed simultaneously find the probability of getting atmost 3 heads​

Answer 1

Answer:

Step-by-step explanation:

the probability of getting three heads is

Three coins are tossed simultaneously.

Possible outcomes = {HHH, HHT, HTH, HTT, THH, THT, TTH, TTT}

Number of total outcomes = 8

(a) Let A be the event of getting three heeds

Thus, possible outcomes = {HHH} = 1

P(three heads) = 1 over 8

(b) Let B be the event of getting exactly two heeds

Thus, possible outcomes = {HHT, HTH, THH} = 3

P(exactly 2 heads) = 3 over 8

(c) Let A be the event of getting at least two heeds

Thus, possible outcomes = {HHH, HHT, HTH, THH} = 4

P(at least 2 heads) = 4 over 8 equals 1 half

Answer 2

Three coins are tossed simultaneously. The probability of getting at most 3 heads is 1.