Review of Mean, Median, Mode Range, Box Plots, Dot Plots

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REVIEW OF MEAN,
MEDIAN, MODE
RANGE, BOX PLOTS,
DOT PLOTS AND
HISTOGRAMS
WARM UP
Find the linear equation that passes through the
following points:
 (3,4) (5,8)
OBJECTIVE
The student will be able to find the mean, median,
mode and range of a set of data and create a box
and whisker, histogram and dot plot.
TRY WITH A PARTNER
Find the Mean, Median, Mode, and Range of the
following set of data:
 80, 81, 79, 100, 87, 91, 99, 100, 95, 92, 93, 97
FINDING MEAN, MEDIAN, MODE
AND RANGE
Mean: is the average of a set of data
Median: is the middle number after ordering the
data from least to greatest.
Mode: Is the most common number in a set of
data.
Range: How “far” the data spreads.
CONTINUED…
Find the Mean, Median, Mode and Range of the
following:
 10, 9, 7, 10, 8, 6, 5, 9, 9
WITH A PARTNER
Create a Histogram with the following set of data:
 25 15 28 52 22 38 42 44 24 32 19 28 29 20 31
HISTOGRAMS
Are Similar to Bar Graphs but have a few
important differences:
 They do not have gaps between sets of data
 Data on the x-axis is grouped into ranges.
The y-axis represents frequency the data on the x-
axis appears
CONTINUED
CONTINUED
WITH A PARTNER
Create a Dot Plot with the following data:
DOT PLOTS
Dot Plots graphically represent data frequency
using dots or x’s.
x-axis: shows categories of data
y-axis: shows frequency.
CONTINUED
WITH A PARTNER
Create a Box and Whisker Plot from the following
data:
 12, 9, 10, 15, 19, 20, 17, 19, 14, 19
BOX AND WHISKER PLOTS
Vocabulary:
 Quartile: one fourth or one quarter of the data.
 Extreme: the value that is far from the rest of the data.
 The largest and smallest value.
CONTINUED
CONTINUED
Steps to make a Box and Whisker:
 Order and organize the data.
 Find the extremes.
 Find the median.
 Find the quartiles.
 Use the information to create the plot.
EXIT TICKET AND HOMEWORK
Exit Ticket:
 Find the mean, median,
mode and range of the
following:
 10, 10, 3, 4, 5, 7, 9
Homework:
 Worksheet.

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