To determine

a)

To find:

The probability that the number of students next year will be less than 250.

To determine

b)

To find:

The probability that the number of students next year will be less than 300.

To determine

c)

To find:

The probability that the number of students next year will be more than 350.

To determine

d)

To find:

The probability that the number of students next year will be more than 400.

To determine

e)

To find:

The probability that the number of students next year will be between 250 and 350.

To determine

f)

To find:

The probability that the number of students next year will be between 300 and 350.

To determine

g)

To find:

The probability that the number of students next year will be between 350 and 375.