The probability distribution of X, the number of under-inflated tires on a randomly selected automobile checked at a particular inspection station is given below X 0 1 2 3 4
Prob 0.54 0.16 0.06 0.04 0.20
What is the expected number of underinflated tires on a random inspection?
a. 2.00
b. 1.20
c. 1.00
d. 0.54

Afarm that has 4 x 10^2 acres has 1.2 x 10^5 cattle. what is the average number of cattle per acre? write the answer in scientific notation. answere asap

Jack did 3/5 of all problems on his weekend homework before sunday. on sunday he solved 1/3 of what was left and the last 4 problems. how many problems were assigned for the weekend?

Circle a has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. the diameter of circle b is 6 inches, the circumference is 18.84 inches, and the area is 28.26 square inches. part a: using the formula for circumference, solve for the value of pi for each circle. (4 points) part b: use the formula for area and solve for the value of pi for each circle. (4 points)