sushikaya1205
24.04.2020 •
Mathematics
A check of dorm rooms on a large college campus revealed that 33 %33% had refrigerators, 52 %52% had TVs, and 22 %22% had both a refrigerator and a TV. What's the probability that a randomly selected dorm room has a) a refrigerator but no TV? b) a refrigerator or a TV, but not both? c) neither a refrigerator nor a TV?
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Ответ:
70kg = x-bar
Step-by-step explanation:
μ(mean of pop.) = x-bar(mean of sample)
70 = x-bar