Mathematics, 17.09.2021 14:00 makylahoyle
The results of a national survey showed that on average, adults sleep 6.9 hours per night. Suppose that the standard deviation is 1.4 hours. (a) Use Chebyshev's theorem to calculate the minimum percentage of individuals who sleep between 4.1 and 9.7 hours. % (b) Use Chebyshev's theorem to calculate the minimum percentage of individuals who sleep between 3.4 and 10.4 hours. % (c) Assume that the number of hours of sleep follows a bell-shaped distribution. Use the empirical rule to calculate the percentage of individuals who sleep between 4.1 and 9.7 hours per day. % How does this result compare to the value that you obtained using Chebyshev's theorem in part (a)
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Ascientist has 50 grams of a radioactive element. the amount of radioactive element remaining after t days can be determined using the equation (1) after two days the scientist receives a second shipment of 50 grams of the same element. the equation used to represent the amount of shipment 2 remaining after t days is 10) - 50 which of the following is an equivalent form of the expression for the amount remaining in shipment 2? what’s the answer?
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The results of a national survey showed that on average, adults sleep 6.9 hours per night. Suppose t...
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