The scatter plot shows the time spent texting and the time spent exercising by each of 25 students last week. Also shown is the line of best fit for the data. Fill in the blanks below. (a) For these 25 students, as the time spent texting increases, the time spent exercising tends to decrease. (b) For these 25 students, there is a negative correlation between time spent texting and time spent exercising. (c) Using the line of best fit, we would predict that a student texting for 5 hours would exercise for approximately 5.1 hours.
Added by Will H.
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If the points tend to move downward from left to right, this indicates a negative relationship between the time spent texting and the time spent exercising. Show more…
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The scatter plot shows the time spent texting and the time spent exercising by each of 25 students last week. Also shown is the line of best fit for the data. Fill in the blanks below. (a) For these 25 students, as the time spent texting increases, the time spent exercising tends to ?. (b) For these 25 students, there is ? correlation between time spent texting and time spent exercising. (c) Using the line of best fit, we would predict that a student texting for 4 hours would exercise for approximately ? hours.
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The scatter plot shows the time spent texting, x, and the time spent exercising, y, by each of 25 students last week. Use the equation of the line of best fit, y = -0.73x + 8.63, to answer the questions below. Give exact answers, not rounded approximations. (a) What is the predicted time spent exercising for a student who spends 4 hours texting? (b) What is the predicted time spent exercising for a student who doesn't spend any time texting? (c) For an increase of one hour in the time spent texting, what is the predicted decrease in the time spent exercising?
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