It has been found that the waiting time to obtain a table in a cafe during rush hour has a normal distribution with a mean of 130.7 min. and a standard deviation of 12.5 min. How long do people have to wait to be given a table with the following probability? a) P (X ≥ Xo) = 0.83. b) P (X ≥ Xo) = 0.12 c) P (X ≤ Xo) = 0.92 d) P (X ≤ Xo) = 0.07

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3.- It has been found that the waiting time to obtain a table in a cafe during rush hour has a normal distribution with a mean of 130.7 min. and a standard deviation of 12.5 min. How long do people have to wait to be given a table with the following probability?
a) P (X ≥ Xo) = 0.83.
b) P (X ≥ Xo) = 0.12
c) P (X ≤ Xo) = 0.92
d) P (X ≤ Xo) = 0.07

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