Mathematics, 30.03.2021 01:00 angelb2472
Suppose as in 3) sleepHours is a 28 by 1 vector holding the number of hours of sleep and SSI is a 28 by 1 vector holding the sleepiness index for the same period. Write an expression to calculate the correlation between SSI and sleepHours. Do you expect the correlation to be positive, negative, or near zero
Answers: 1
Mathematics, 21.06.2019 17:10
Determine whether the points (β3,β6) and (2,β8) are in the solution set of the system of inequalities below. x ? β3 y < 5? 3x + 2 a. the point (β3,β6) is not in the solution set, and the point (2,β8) is in the solution set. b. neither of the points is in the solution set. c. the point (β3,β6) is in the solution set, and the point (2,β8) is not in the solution set. d. both points are in the solution set.
Answers: 3
Mathematics, 21.06.2019 18:30
Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.
Answers: 1
Mathematics, 21.06.2019 20:00
Frank owns a $141,000 home, for which he has a 30-year mortgage in the amount of $700 a month. once he has paid off mortgage, how much will he have paid in investment? a. $111,000 b. $109,000 c. $120,000 d. $141,000
Answers: 1
Suppose as in 3) sleepHours is a 28 by 1 vector holding the number of hours of sleep and SSI is a 28...
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