Chapter 12: Q.48 (page 719)
Graph “year” vs. “# flu cases diagnosed.” Do not include pre-1981. Label both axes with words. Scale both axes
Short Answer
The scatter plot:
Chapter 12: Q.48 (page 719)
Graph “year” vs. “# flu cases diagnosed.” Do not include pre-1981. Label both axes with words. Scale both axes
The scatter plot:
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Get started for freeWhat does the correlation imply about the relationship between time (years) and the number of diagnosed flu cases reported in the U.S.?
Perform linear regression. What is the linear equation? Round to the nearest whole number.
What would you predict the sales to be on day ?
Data are collected on the relationship between the number of hours per week practicing a musical instrument and scores on a math test. The line of best fit is as follows: What would you predict the score on a math test would be for a student who practices a musical instrument for five hours a week?
For a given line of best fit, you compute that r = 0 using n = 100 data points. Can the line be used for prediction? Why or why not?
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