There are 1,500 apples in a cold storage room. Some are green apples, and the rest are red apples. The manager of the cold
storage facility wants to estimate the number of green apples in the room. He takes a random sample of 20 apples and records
number of green apples. He repeats this 15 times and records the data as shown.
a. 40%
b.60%
c.50%
d.45%