Answer:
Step-by-step explanation:
Given that X is the number of months between successive payments
Cumulative distribution function of X is

a) PMF of x would be

b) 
Answer: x = 13/5
Explanation:
(x+4)/(3x+1) = 3/4
Cross multiply:
4(x+4) = 3(3x+1)
4x + 16 = 9x + 3
4x - 9x = 3 - 16
-5x = -13
x = -13/-5
x = 13/5
Answer:
28
Step-by-step explanation:
The function that we have in this is f(x) = 4x. We can see this in 4 * 4 = 16, 5 * 4 = 20 and 6 * 4 = 24. Therefore, following the pattern, 7 * 4 = 28.
Answer:
3 km
Step-by-step explanation:
<em>(NOTE: One kilometer is 1000 meters)</em>
Divide 3000 by 1000 to get 3
Answer:
11 years old
Step-by-step explanation:
3 years ago, Gloria was 32 years old
If Ivana's age is = x
Then, 4x = 32
x = 8
3 years ago, Ivana was 8 years old
So now she is 11 years old.