Answer:
They are equal.
Step-by-step explanation:
I calculated 76 ÷ 12 and got 6.33333333333. (I think)
Answer:
Mean, E(x) = 0.17
Variance, V(x) = 0.12
Step-by-step explanation:
90% contains no defective bulbs, P(X=0) = 0.9
5% contain one defective bulbs, P(X=1) = 0.05
3% contain two defective bulbs, P(X=2) = 0.03
2% contain three defective bulbs, P(X=3) = 0.02
The mean for the number of defective bulbs:
Variance for the defective bulbs:
V(x) = 0.29 - 0.17
V(x) = 0.12
Answer:
for the second picture: the answer is 15 hours
Step-by-step explanation:
174 miles is for 3 hours, divide that by 3 to find how many miles per hour it is, 870 divided by 58 will give you the number of hours; 15. hope this helps!
Answer:
He started with 45
Step-by-step explanation:
started with 45 gave 31 away. Is left with 14 then buys 10 more and now has 24
Answer:
45 degrees
Step-by-step explanation:
The right angle is split so there is s 45 degree angles, a and the top left angle are equal so they are both 45