Answer:
a.
b.
\
c.
Step-by-step explanation:
Let
are the events that denotes the good drive, medium drive and poor risk driver.

Let A be the event that denotes an accident.



The company sells Mr. Brophyan insurance policy and he has an accident.
a.We have to find the probability Mr.Brophy is a good driver
Bayes theorem,
We have to find 
Using the Bayes theorem

Substitute the values then we get


b.We have to find the probability Mr.Brophy is a medium driver

c.We have to find the probability Mr.Brophy is a poor driver

Answer:
there are a total of 20 boys and 30 girls in the choir of 50 students
Step-by-step explanation:
Scale the ratio 2:3. so that the numbers on either side sum to 50 . 2+3=5 , and 50÷5=10 , so we scale our ratio by a factor of 10 . So there are a total of 20 boys and 30 girls in the choir of 50 students
Answer:
16.73 to nearest hundredth.
Step-by-step explanation:
The geometric mean of x and y is √xy.
So out geometric mean is √(14*20)
= √280
= 16.7332
3. -1
4. 19/4
hope i helped!