Question 187882This question is from textbook Elementary Statistics
: Using your calculator find the following probabilities, use the standard normal distribution.
a) P(-2.46
b) P(z>.-1.77)
I know i'm supposed to use invNorm(, but i don't know who to plugg in numbers to get the right answer. Please help me.
This question is from textbook Elementary Statistics
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Using your calculator find the following probabilities, use the standard normal distribution.
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If you have posted the problems correctly,you cannot use InvNorm to
get the result. InvNorm gives you a z-value when you give it a propability.
But -2.46 cannot be a probabiity because it is negative and it is not between
zero and one.
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If you want the probability that z is less than -2.46 you have to use
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a) P(z< -2.46) = normalcdf(-10,-2.46) = 0.0069
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b) P(z>.-1.77) = normalcdf(-1.77,10) = 0.9616
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Cheers,
Stan H.
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