Answer:
B. $1750
Step-by-step explanation:
The mean of the discrete uniform distribution is given by:
![M = \frac{a+b}{2}](https://tex.z-dn.net/?f=M%20%3D%20%5Cfrac%7Ba%2Bb%7D%7B2%7D)
In this problem, we have that
.
The expected time to find the car is:
![M = \frac{3+11}{2} = 7](https://tex.z-dn.net/?f=M%20%3D%20%5Cfrac%7B3%2B11%7D%7B2%7D%20%3D%207)
7 hours are expected to find the car.
The helicopter costs $250 per hour to rent.
7*$250 = $1750
So the correct answer is:
B. $1750
Hey user☺☺
Lets assume the ratio quantity be 8x and 5x.
A.T.Q.
8x + 5x = 78
13x = 78
x = 6
so, number of basketball card is 8 × 6 = 48
and, number of football card is 5 × 6 = 30.
Hope this will help☺☺
___________________________☆☆☆☆☆☆________________________
Simplify the expression : 42x + 116
Hope this helps!
Have a great day!
Answer:
C.
Step-by-step explanation:
using (x,y)
c has x as -3