It’s either 11.25 or 27.75. Next time please show the answer choices too!
8/12 because 3/4 is equal to 9/12 and there was 1/12 left so 8/12
The answer will be fifteen degrees because one sixth is 1/6 and a right angle is 90 degrees so it will be 1/6 * 90/6 which will be 90 divided by 6 and equal fifteen .
It’s the answer above sorry if this dindt help it might not be
Answer:
The probability that 34 randomly selected laptops would have a mean replacement time of 3.2 years or less is 0.0018.
Step-by-step explanation:
Test statistic (z) = (sample mean - population mean) ÷ (population sd/√n)
sample mean = 3.2 years
population mean = 3.4 years
population sd = 0.4 year
n = 34
z = (3.2 - 3.4) ÷ (0.4/√34) = -0.2 ÷ 0.0686 = -2.92
The cumulative area of the test statistic is subtracted from 1 to obtain the probability that 34 randomly selected laptops would have a mean replacement time of 3.2 years or less. The cumulative area is 0.9982. Therefore, the probability is (1 - 0.9982 = 0.0018)
