Mathematics, 15.10.2019 19:20 nengliangli523
Suppose that a school has 20 classes: 16 with 25 students in each, three with 100 students in each, and one with 300 students, for a total of 1000 students. (a) what is the average class size? (b) select a student randomly out of the 1000 students. let the random variable x equal the size of the class to which this student belongs, and define the pmf of x. (c) find e(x), the expected value of x. does this answer surprise you?
Answers: 1
Mathematics, 21.06.2019 15:00, bige556
Cherie measures and records the lengths and sizes of the same style of a sandal found at a shoe store. which equation can be used to determine the approximate shoe size, s, for a foot length of x inches? s = x – 2 s = 2x – 10 s = x + 6 s = 2x + 4
Answers: 3
Suppose that a school has 20 classes: 16 with 25 students in each, three with 100 students in each,...
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