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Suppose the ages of cars driven by employees are normally distributed with a mean of 5.5 years and a standard deviation of 1.5 years. What is the z-score of a 4 year old car?

a) 1.5
b) 1
c) -1
d) -1.5

Astore manager records the total visitors and sales, in dollars, for 10 days. the data is shown in the scatter plot. what conclusion can the store manager draw based on the data? question 3 options: an increase in sales causes a decrease in visitors. an increase in sales is correlated with a decrease in visitors. an increase in visitors is correlated with an increase in sales.

If 20% of a number is 35, what is 50% of that number?

Which of the following answers is 7/9 simplified? 7/9 2/9 11/9 2/7