Statistics And Graphs Question Preview (ID: 15603)


Mean, Median, Mode, Range And Interpreting Graphs. TEACHERS: click here for quick copy question ID numbers.

Andy has grades of 84, 65 and 76 on three math tests. What grade must he obtain on the next test to have an average of exactly 80 for the four tests?
a) 80
b) 90
c) 95
d) 100

You recorded the number of rainy days in Mumbai for each month of the year. Here is your data: 14, 14, 10, 12, 11,13,11,11, 14, 10, 13, 8. What is the mean of the data?
a) 14.1
b) 14.2
c) 14.3
d) 14.4

You want to graph the change in the value of your car over time. Which graph would be the best one to use?
a) Bar Graph
b) Histogram
c) Stem and Leaf Plot
d) Line Graph

Which of the following is NOT a difference between a bar graph and a histogram
a) Histograms use intervals
b) Bar graphs can be used to display qualitative data
c) Histograms use bars of equal width
d) Histograms always use intervals of 5 numbers

You surveyed the ages of 7 of your classmates. Find the median age from the data: 12, 14, 11, 10, 9, 14, 13
a) 11
b) 12
c) 13
d) 14

How many modes are in the following set of data: 11, 11, 11, 88, 88, 99, 100, 100
a) 3
b) 2
c) 1
d) 4

A teacher recorded the following set of test scores: 50, 89, 90, 90, 95. Assume 50 is an outlier. How does the outlier affect the mean of this data set?
a) It does not affect it.
b) It raises the mean of the group
c) It lowered the mean of the group to around 89.
d) It lowered the mean of the group to around 83.

How many quartiles are there in a box and whisker plot?
a) 3
b) 4
c) 5
d) 6

What fraction of the numbers are contained in each quartile a box and whisker plot?
a) 1/3
b) 1/2
c) 1/4
d) 1/5

All of the following are ways to create a MISLEADING graph, EXCEPT
a) Don't start the scale of the graph at 0
b) Number your axises using small numbers
c) Use pictures that either over or under-sized
d) Use a pie chart that accurately equates 1/2 of the circle to 50% of the data.

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