The mean incubation time for a type of fertilized egg kept at a certain temperature is 21 days suppose that the incubation times are approximately normally distributed with a standard deviation of 1 day

Draw a normal model that describes egg incubation times of these fertilized eggs
Choose correct graph
D a c b

D

To draw a normal model that describes the egg incubation times of these fertilized eggs, we need to plot a normal distribution curve. The curve should be centered at the mean incubation time of 21 days and have a standard deviation of 1 day.

The correct answer is option D.

The correct graph to represent the normal model that describes the egg incubation times of these fertilized eggs is option C, which is a bell-shaped curve. The bell-shaped curve is typical for a normal distribution.