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A box contains five cards, numbered 1, 2, 3, 4, and 5. Three cards are selected randomly without replacement from the box. How many combinations would have 4 as the largest value selected?

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The data below represent the number of days absent x, and the final grade, y, for a sample of college students at a large university. Complete parts a through e below. No. of absences, x: 0 2 3 4 5 6 7 8 9 Final grade, y: 88.1 85.3 82 37.9 87.6 86.8 12.4 63.0 67.3 64.4 61.4 a) Find the least-squares regression line treating the number of absences, x, as the explanatory variable and the final grade, y, as the response variable. Round to three decimal places as needed. b) Interpret the slope and y-intercept, if appropriate. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. Round to three decimal places as needed. OA. For every day absent, the final grade falls by, on average. OB. For zero days absent, the final score is predicted to be. OC. For every unit change in the final grade, the number of days absent falls by, on average. OD. For a final score of zero, the number of days absent is predicted to be. OE. It is not appropriate to interpret the slope. Interpret the y-intercept. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. Round to three decimal places as needed. CA. For every unit change in the final grade, the number of days absent falls by, on average. CB. It is not appropriate to interpret the y-intercept. c) Predict the final grade for a student who missed compute the residual. Is the observed final grade above or below average for this number of absences? The predicted final grade is. This observation has a residual, which indicates that the final grade is average.
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Question Text
A box contains five cards, numbered 1, 2, 3, 4, and 5. Three cards are selected randomly without replacement from the box. How many combinations would have 4 as the largest value selected?
TopicAll Topics
SubjectStatistics
ClassClass 11