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

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

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.