probability
posted by Anonymous .
According to genetic theory, plants of a particular species have a 25% chance of being redflowering, independently of other plants. Find the normal approximation to the chance that among 10,000 plants of this species, more than 2400 are redflowering.

P (p > 0.23995) = P (x > 2399.5) = P (z > 2.3209) = 0.9899