Three coins are tossed simultaneously 200 times with the following Frequencies of different Outcomes: Out comes 3 Heads ,2 Heads, 1 Head, No head Frequency 23,72, 77 ,28 Find the probability of getting: a) 2 Heads To b) at least 2 Heads.
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Three coins are tossed simultaneously 200 times with the following Frequencies of different Outcomes: Out comes 3 Heads ,2 Heads, 1 Head, No head Frequency 23,72, 77 ,28 Find the probability of getting: a) 2 Heads To b) at least 2 Heads.
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Answer:
Probability of an event, P(E) = Number of occurrences where the event takes place / Total number of occurrences
The probability of 2 heads coming up when three coins are tossed simultaneously is given by the ratio of the number of times a particular outcome occurs to the total number of tosses.
Total number of tosses = 200
Number of 2 heads outcomes = 72
Probability of 2 heads outcomes = Number of 2 heads outcomes / Total number of tosses
= 72/200
= 9/25