Question

Three coins are tossed simultaneously 200 times with the following frequencies of different outcomes.
Outcome 3 heads 2 heads 1 head No head
Frequency 23 72 77 28
If the three coins are simultaneously tossed again, compute the probability of 2 heads coming up.

Answer 1

Hello,

➡️➡️Solution:

Given

Outcome -------------- Frequency

3 Heads---------------------23

2Heads----------------------72

1 Head -----------------------77

No head--------------------28


➡️➡️Probability of occurring an event =

Favourable outcome/Total Possible Outcome


➡️➡️Probability of appearing 2 heads

= 72/200



✳️ If those 3 coins tossed again, then possible outcomes are 8

HHH

HHT

HTT

TTT

THH

TTH

HTH

THT

Favourable outcome for 2 heads = 3


➡️PROBABILITY of occurring two heads = 3/8

Hope it helps you.

Answer 2

The answer is in the attachment.