A customer from cavallaros fruit stand picks a sample of 4 oranges at random from a crate containing 60 oranges of which 5 are rotten. What is the probability that the sample contains 1 or more rotten oranges

I honestly don't know if this is right but it may make sense:

x is the event of picking up a rotten orange.

Probability that x is more than or equal to 1

= 1 - p (x=0)

so use binomialpdf on calculator

where trial is 4, p = 1/12 (5/60), x = 0

1 - binoomialpdf (4, 1/12, 0)

and u get 0.294