Mathematics, 18.03.2021 02:30, katlynnschmolke
2.
An online bookstore is having a one-day sale. Softcover books are $4, hardcover books are $7, magazines are $3, and all digital downloads of books are $2.
Let's say 150 customers purchased books in one form or another that day. Below are the frequencies in which customers purchased books:
Books: Purchases:
Softcover 42
Hardcover 28
Magazine 23
Digital Download 57
Based on the data above, which is the correct relative frequency with discrete random variable X = "the amount of money for a book?"
Answers: 2
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What is the standard deviation of the following data set rounded to the nearest tenth? 3, 17, 18, 15, 12, 21, 9
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Which ratios are equivalent to 10: 16? check all that apply. 30 to 48 25: 35 8: 32 5 to 15
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2.
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