________ provide a picture of the relationship between two data points that are paired together.
A) Scatter plots
B) Pareto charts
C) Histograms
D) Pie charts
Q. 2Because hypothesis testing relies on a sample, we expose ourselves to the risk that our conclusions about the population will be wrong because of a sampling error.
Indicate whether the statement is true or false
Q. 3A disadvantage of using the range as a measure of variability is that __________________.
A) it is fairly difficult to calculate
B) all of the values in the data set are needed for the calculation
C) it is highly influenced by outliers
D) the units of the range are the square of the original data set
Q. 4According to the Insurance Research Council, 14 of U.S. drivers are uninsured. A random sample of seven drivers was selected. What is the probability that three or more of these drivers are uninsured?
A) 0.0620
B) 0.0956
C) 0.1233
D) 0.1518
Q. 5A stem and leaf display most resembles a __________.
A) histogram
B) contingency table
C) relative frequency distribution
D) pie chart
Q. 6The ________ can found by subtracting the lowest value from the highest value in the data set.
A) standard deviation
B) variance
C) median
D) range
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