There are 16 females and 20 males in a class.

Part A

What is the theoretical probability that a randomly chosen student is female? Type answer in box in simplified form.


Part B
What is the theoretical probability that a randomly chosen student is males? Type answer in box in simplified form.

Part C
One week later, there are 45 students in the class. The theoretical probability that a randomly chosen student is a female is the same as last week. How many females joined the class?

A
20
B
15
C
10
D
30There are 16 females and 20 males in a class.

Part A

What is the theoretical probability that a randomly chosen student is female? Type answer in box in simplified form.


Part B
What is the theoretical probability that a randomly chosen student is males? Type answer in box in simplified form.

Part C
One week later, there are 45 students in the class. The theoretical probability that a randomly chosen student is a female is the same as last week. How many females joined the class?

A
20
B
15
C
10
D
30