Mathematics, 14.03.2020 00:27 christhegreat1
A lot of research is conducted on the sleeping habits of U. S. adults. One study reported that X, the amount of sleep per night of U. S. adults follows a normal distribution with mean μ=7.5 hours and standard deviation σ=1.2 hours.
Using the Standard Deviation Rule, what is the probability that a randomly chosen U. S. adult sleeps more than 8.7 hours per night?
Answers: 3
Mathematics, 21.06.2019 18:00
Clara schumann is buying bagels for her coworkers, she buys a dozen bagels priced at $5.49 a dozen. the bakery's cost for making the bagels is $2.25 per dozen. what is the markup rate based on selling price on a dozen bagels?
Answers: 1
Mathematics, 21.06.2019 21:30
In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.
Answers: 2
A lot of research is conducted on the sleeping habits of U. S. adults. One study reported that X, th...
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