Interactive practice questions
The box plots drawn below show the number of repetitions of a $70$70 kg bar that two weightlifters can lift. They both record their repetitions over $30$30 days.
Which weightlifter has the more consistent results?
Weightlifter A.
Weightlifter B.
What statistical evidence supports your answer?
The mean.
The range.
The mode.
The graph is positively skewed.
Which statistic is the same for each weightlifter?
The median.
The mean.
The mode.
Which weightlifter can do the most repetitions of $70$70 kg?
Weightlifter A.
Weightlifter B.
The box plots show the monthly profits (in thousands of dollars) of two derivatives traders over a year.
The two box plots below show the data collected by the manufacturers on the life-span of light bulbs, measured in thousands of hours.
A mathematics test is given to two classes.
The marks out of $20$20 received by students in each class are represented in the parallel box plots below.