Time spent usingâ e-mail per session is normallyâ distributed, with mu equals 10î¼=10 minutes and sigma equals 3ï=3 minutes. assume that the time spent per session is normally distributed. complete partsâ (a) throughâ (d). a. if you select a random sample of 5050 âsessions, what is the probability that the sample mean is between 9.89.8 and 10.210.2 âminutes?

a function could be identified in 3 ways either on a chart,graph, or ordered pairs. first a function is that each point has its own. the rule is that there can be many x's to one y but there can not be 2 x's at different y's. so on a graph when you put a straight line through the y's there should be one dot only to be a function.

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the answer is 21%.