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)
Answers: 2
Mathematics, 21.06.2019 23:00
Is there a direction u in which the rate of change of f(x,y)equals=x squared minus 3 xy plus 4 y squaredx2−3xy+4y2 at p(1,2) equals 14? give reasons for your answer. choose the correct answer below. a. no. the given rate of change is smaller than the minimum rate of change. b. no. the given rate of change is larger than the maximum rate of change. c. yes. the given rate of change is larger than the minimum rate of change and smaller than the maximum rate of change.
Answers: 2
Mathematics, 22.06.2019 01:00
(05.02) mr. morris is going to save money and replace his sailboat's mainsail himself. he must determine the area of the mainsail in order to buy the correct amount of material. calculate the area of the parallelogram to determine how much material should be purchased. be sure to explain how to decompose this shape into rectangles and triangles. describe their dimensions and show your work.
Answers: 1
Mathematics, 22.06.2019 01:50
Twelve different video games showing substance use were observed and the duration times of game play (in seconds) are listed below. the design of the study justifies the assumption that the sample can be treated as a simple random sample. use the data to construct a 99% confidence interval estimate of μ, the mean duration of game play. 4028 4316 4816 4650 4036 5010 4833 4331 4307
Answers: 1
Mathematics, 22.06.2019 02:20
Which equation can be simplified to find the inverse of y = 2x2^2
Answers: 2
The results of a national survey showed that on average, adults sleep 6.9 hours per night. Suppose t...
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