this is an ice cream shop selling home made ice creams daily –

this is an ice cream shop selling home made ice creams daily –

Question this is an ice cream shop selling home made ice creams daily -

If we have a mean of 250 and a standard deviation of 50 what is the probability that there are more than 300 ice cream cone sold in a day?

And what is the probability of less than 220 ice cream cones sold in a day?

How many ice cream cones would need to be on hand so that it only had a 5% likelihood of ice cream running out on a given day