Mathematics, 16.03.2020 18:46, tylerchitwood211
The owner of a chain of supermarkets notices that there is a positive correlation between the sales of beer and the sales of ice cream over the course of the previous year. Seasons when sales of beer were above average, sales of ice cream also tended to be above average. Likewise, during seasons when sales of beer were below average, sales of ice cream also tended to be below average. A plausible explanation of these facts is that:. a. the sales records must be in error. There should be no association between beer and ice cream sales.
b. drinking beer causes a desire for ice cream or eating ice cream causes a thirst for beer.
c. a scatter plot of monthly ice cream sales versus monthly beer sales would show that a straight line describes the pattern in the plot, but it would have to be a horizontal line.
d. the sale of beer and ice cream may both be affected by another variable such as the outside temperature.
e. none of the above.
Answers: 1
Mathematics, 21.06.2019 12:30, leximae7720
Suppose there are 10 five and six-year-old attending a birthday party. when a 30 year old mother walks into the room with an infant in her arms, what happens to the mean age in the room? what happens to the standard deviation of ages in the room? a. the mean and standard deviation of both change. b. the meaning will change, but the standard deviation will stay approximately the same. c. i mean will stay approximately the same, but the standard deviation will change. d. the mean and standard deviation will both stay approximately the same.
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Mathematics, 22.06.2019 04:30, barnhill6534
The distance from the sun to earth is about 1.5×10 to the 11th m suppose light travels at a speed of 3×10 to the 8th m per second about how long does it take light from sun to reach earth
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The owner of a chain of supermarkets notices that there is a positive correlation between the sales...
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