Question.3 (a) Draw a normal curve and write the maximum and minimum values of z-scores with probabilities associated wi

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Question.3
(a) Draw a normal curve and write the maximum and minimum values of
z-scores with probabilities associated with these values. Also,
find the area below the z equals -1.12 and above the z equals 1.12.
What is the probability of resulting values of z?
(b) Saleem leaves his house at 7.15 a.m. for his office. The time
taken to reach the office is normally distributed with a mean of 50
minutes and a standard deviation of 12 minutes. What is the
probability that Saleem will reach the office early on a randomly
selected day if the office starts at 8.30 a.m?