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Statistics Questions on Normal Distribution
Find the probability for the standard normal random variable z
Find the area under the standard normal probability distribution between the following pairs of Z-scores
z=0 and z=2.00
z=0 and z=1.00
z=0 and z=3.00
z=0 and z=0.74
Suppose x is a normally distributed random variable with u=11 and s =2
Find each of the following probabilities
P(X = 9.5)=
P(11.78 = x = 15.84)=
P(5.72 = x = 13.84)=
The age of a group of 50 women are approximately normally distributed with a mean of 29 years and a standard deviation of 6 years. One woman is randomly selected from the group and her age is observed.
Find the probability that her age will fall between 54 and 61 years__
Find the probability that her age will fall between 48 and 53 years__
Find the probability that her age will be less than 35 years__
Find the probability that her age will exceed 40 years_____
(round to four decimal places as needed)
The mean gas mileage for a hybrid car is 57 miles per gallon. Suppose that the gasoline mileage is approximately normally distributed of 3.5 miles per gallon.
What is the probability that a randomly selected hybrid gets more than 60 miles per gallon?
What is the probability that a randomly selected hybrid gets 53 gallon or less?
What is the probability that a randomly selected hybrid gets 58 and 62 per gallon?
What is the probability that a randomly selected hybrid gets less than 45 gallon?
Resource reservation protocol was originally designed to establish singling links for stationary networks. RSVP was applied to mobile wireless technology. A simulation study reveals that the transmission delay (measured in milliseconds) of a rsvp link wireless device has an approximate normal distribution with mean u=49.5 milliseconds and s-8.5 milliseconds.
What the probability that the transmission delay is less than 57 milliseconds?
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