Answer:
Step-by-step explanation:
Let X be the no of vehicles that require warranty service within I year out of vehicles sold (9) yesterday.
Each vehicle is independent of the other to get warranty service
Hence X is binomial with p=8% = 0.08
So P(X=x) = ![9Cx (0.08)^x (1-0.08)^{9-x} ,x=0,1,2...9](https://tex.z-dn.net/?f=9Cx%20%280.08%29%5Ex%20%281-0.08%29%5E%7B9-x%7D%20%2Cx%3D0%2C1%2C2...9)
![a) P(X=0) = 0.472161\\b) P(x=1) = 0.3695](https://tex.z-dn.net/?f=a%29%20P%28X%3D0%29%20%3D%200.472161%5C%5Cb%29%20P%28x%3D1%29%20%3D%200.3695)
c) ![P(X=2) = 0.1285](https://tex.z-dn.net/?f=P%28X%3D2%29%20%3D%200.1285)
d) Mean = Mean of binomial = np =
![9(0.08) = 0.72](https://tex.z-dn.net/?f=9%280.08%29%20%3D%200.72)
Var (x) = npq = ![0.6624](https://tex.z-dn.net/?f=0.6624)
Std dev = square root of variance = 0.8139
The coordinates would surely be -9,15
Answer:
$11.10 per gallon.
Step-by-step explanation:
There are 4 quarts in a gallon so the cost of a gallon of oil currently is 1.85×4=$7.40
If the gallon price of oil goes up 50% then our answer is: 7.40×
=
=11.1
The price of oil in March will be $11.10 per gallon.
The temperature at 6am would've been -2 because 3 - 5 = -2