Question

Julie designs gardens for a living. For a year she kept track of the amount of time she spent designing the garden and then whether or not the customer returned. She recorded the time and probability that a customer returned.

If she wants to have the GREATEST probability that a customer returns, how long should she spend designing a garden?
Responses
A 2-3 hours
B 3-4 hours
C 1-2 hours
D 4-5 hours

Answer 1

Julie needs to have at least
B. 3-4 hours
7 divided by 8 times 100 =87.5%

Answer 2

I don't know if I'm right so don't take my word for it but I think its D