Estimate the probability that at least one player would play a perfect round

[Pehr]

the probability that any player would play a perfect round is = 0.0003514997

whats is the probability that at least one player out of 78can do this?

 

[Deleted member 4993]

the probability that any player would play a perfect round is = 0.0003514997

whats is the probability that at least one player out of 78can do this?

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Please share your work/thoughts about this problem.

 

[Pehr]

i got a list of 78 players with diffrent score so i calculated the expected value
E[X] = 69.025
sd[X] = 2.569092

I am using R as statistic calculator and the probability that is under 61 i got though pnorm(61,mean(69),sd(2.5)

but im not sure how to calc the prob that atleast one player did this score.

 

[Steven G]

P(at least one ....) = 1- P(zero ...)