The height and weight are recorded by the school nurse for every student in a school. What type of graph would best display the relationship between height and weight?
a. bar graph
b. stem-and-leaf plot
c. histogram
d. scatter diagram
Question 2
A random sample of 121 bottles of cologne showed an average content of 4 ounces. It is known that the standard deviation of the contents (i.e., of the population) is 0.22 ounces. The point estimate of the mean content of the bottles is
a. 0.22
b. 4
c. 121
d. 0.02
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