Show work in order to receive credit. 11. What does the scatterplot show regardi

Question

Show work in order to receive credit. 11. What does the scatterplot show regarding the variables? 12. Specify the line of best fit from the regression output. 13. Specify the slope of the regression line and interpret it in context of the data. 14. Specify the intercept of the regression line and interpret it in context of the data. 15. Predict the celluluar percentage for a country with a GDP value of 12 16. Does the output seem to support the idea that the higher the GDP for a country, the higher the percent of the population in a country that uses cell phones? Justify your response. ge the model? Explain. 17. Would the removal of the country with a GDP of 29.3 chan

Explanation / Answer

1) is done correct here.

2) Probability that the customer shopped at John's medical supply is computed as:

= Total number of customer shopped at John's medical supply / Total customers

= 344 / 2047

= 0.1681

Therefore 0.1681 is the required probability here.

3) Probability that the customer shopped at John's medical supply and uses cash is computed as:

= Total number of customer shopped at John's medical supply and used cash / Total customers

= 23 / 2047

= 0.0112

Therefore 0.0112 is the required probability here.

4) Clearly as there are people who use cash in the John's medical supply, therefore the 2 events are not mutually exclusive.

5) Probability that the customer used cash or shopped in John's medical supply is computed using the addition law of probability as:

P( cash or John's medical supply) = P( cash ) + P( John's medical supply) - P( cash and John's medical supply)

P( cash or John's medical supply) = 0.228 + 0.1681 - 0.0112 = 0.3849

Therefore 0.3849 is the required probability here.

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