Asked by harsh
The probability that 1 egg out of 30 is cracked is 0.05.
a)Find the probability that at least 1 egg is cracked out of 30.
b)Find the probability that at most 2 are cracked
a)Find the probability that at least 1 egg is cracked out of 30.
b)Find the probability that at most 2 are cracked
Answers
Answered by
Reiny
a) exclude the case where none are cracked
Prob(none are cracked)
= C(30,0)(.05)^0 (.95)^30
= ....
b) follow the above pattern to get
Prob(none) + prob(one broken) + prob(two broken)
= ..... + C(30,1) (.05)^1 (.95)^29 + ....
= ....
Prob(none are cracked)
= C(30,0)(.05)^0 (.95)^30
= ....
b) follow the above pattern to get
Prob(none) + prob(one broken) + prob(two broken)
= ..... + C(30,1) (.05)^1 (.95)^29 + ....
= ....
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