A study shows the number of hours per week students at Semin…

A study shows the number of hours per week students at Seminole State spend on online homework is normally distributed with a mean of 12 hours and a standard deviation of 1.5 hours. If Jimmy spends 8 hours per week on the online homework, Use the HonorLock calculator to find the z-score of the hours spent. Is the z-score unusually low?

The following is a probability distribution of the GPA of a…

The following is a probability distribution of the GPA of a set of 236 students. Use StatCrunch to find the mean and standard deviation of the following GPA for a set of 236 students.    X (GPA)    1    2    3    4    P(X)    0.03    0.34    0.36    0.27