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Box Plot
Contributed by: Rodriguez

A study was conducted to determine the effectiveness of a speed limit sign.

The speeds of cars at the 65 mph sign were:

58  60  65  65  70  70  71  74  85  88

Which box plot correctly displays the information?

A

B
C
D

Ms. Rodriguez made a box plot of the quiz grades in her

math class.  Which is the median quiz grade for the class?

70
86
77
58

Ms. Smith made a box plot of the quiz grades in her

math class.  Which is the range of quiz grades for the class?

38
96
58
16
Which of the following statements is FALSE about the box plot shown below.  The graph shows the weights of small dogs recentlybrought into the vet clinic.
The smallest dog was 2 pounds.
The average weight of a dog was about    11.5 pounds.
The range of the weight of the dogs was    21 pounds.
25% of the dogs weighed over 14.5 pounds.
minimum

maximum
Which value is arrow A pointing to on the box plot?
A
D
quartile 1
quartile 3
B
E
median
mean
C
minimum

maximum
Which value is arrow B pointing to on the box plot?
A
D
quartile 1
quartile 3
B
E
median
mean
C
minimum

maximum
Which value is arrow C pointing to on the box plot?
A
D
quartile 1
quartile 3
B
E
median
mean
C
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