Answer:
2.28%
Step-by-step explanation:
mean = 5 years = 60 months
standard deviation = 6 months
X = number of years the tires will last
P = probability of ...
z = z-score
6 years = 72 months
z = (# of months - mean) / standard deviation
z = (72 - 60)/6
z = 12/6
z = 2
P(X > 72) = 1 - P(X < 72)
= 1 - P(z < 2)
(using a Standard Normal Probabilities Table we can see that P(z < 2) = .9772)
So:
= 1 - .9772
= 0.0228 OR 2.28%
Answer:
x = 1 , y = 2
Step-by-step explanation:
Solve for substitution
Answer: There is a 50% chance one will land on heads.
Step-by-step explanation:
I think the answer is B I got this right but it was for a completed grade so i’m not sure
Step-by-step explanation:
= 18 a³/ - 3 a
= - 6 a²
plz mark my answer as brainlist plzzzz.hope this will be helpful to you ☺️.
if you find it useful.
