Three coins are tossed simultaneously 200 times with the following frequencies of different outcomes: Outcomes: 3 tails - Maths - Probability

Question

Three coins are tossed simultaneously 200 times with the following
frequencies of different outcomes:

Outcomes: 3 tails 2 tails 1 tail No tail
Frequency: 31 68 75 26

Find the probability of getting:
(a) at least 2 tails
(b) at most 2 tails

Vijay Kumar Gupta · Accepted Answer

Dear student,

Please find below the solution to the asked query:

The respective probabilities for each of the given outcome is,   Prob3 tails=31200   Prob2 tails=68200   Prob1 tails=75200   Probno tails=26200a The probability of getting atleast 2 tails is,   probatleast 2 tails=prob2 tails or 3 tails                                    =prob2 tails+prob 3 tails                                    =68200+31200                                    =99200                                    =0
495b The probability of getting atmost 2 tails is,   probatmost 2 tails=probNo tail or 1 tail or 2 tails                                    =probNo tails+prob 2 tail+prob 2 tails                                    =26200++75200+68200                                    =169200                                    =0
845

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Three coins are tossed simultaneously 200 times with the following frequencies of different outcomes: Outcomes: 3 tails 2 tails 1 tail No tail Frequency: 31 68 75 26 Find the probability of getting: (a) at least 2 tails. (b) at most 2 tails.

Three coins are tossed simultaneously 200 times with the following frequencies of different outcomes:

Outcomes: 3 tails 2 tails 1 tail No tail
Frequency: 31 68 75 26

Find the probability of getting:
(a) at least 2 tails.
(b) at most 2 tails.