created by Judith Self Organizing Data by: Using Line Plots Describing Data (mean, median,mode,...

Post on 23-Dec-2015

212 views 0 download

Transcript of created by Judith Self Organizing Data by: Using Line Plots Describing Data (mean, median,mode,...

created by Judith Self

Organizing Data by:Using Line PlotsDescribing Data (mean, median,mode,

and range)Making Charts or Graphs(bar

graphs,circle graphs,pictographs,line graphs)

Line PlotsLine plots are diagrams that organize

data on a number line If your data is numerical, one way to

show it would be with a line plot

Here’s a way to make a line plot.Find the least and the greatest numbers

in your set of data for your line plot.Choose a sequence that will fit your

data.( arrange the numbers by 2’s, 5’s etc.what ever works best for your data)

Put an x on the line plot to represent your data

Write a title for your line plot.

Describing data Mean Median Mode Range

Mean/AverageTo find the mean or average of a set of

data you first :Add the numbersCount the number of dataDivide the total of the numbers by the

number of data.

6,4,6,5,7,7,4,9=48There are 8 sets of dataDivide 48 by 8 = 6To check, 8 x 6= 48

Median The median number of a set of data is the number

found in the middle. Arrange your data in order from least to greatest to

find the middle number. Sometimes you will have two middle numbers.

4 456 6779

ModeThe mode of a set of data is the number

that occurs most often in the data.You may have more than one mode.4,6, and 7 are your modes in this set of

data.

RangeThe range of a set of data is found by

subtracting the least number from the greatest number.

9 – 4 = 5 In this set of data the range is from 4 to

9 with the exact range of 5.

Making Charts and Graphs

010

2030

4050

6070

8090

1stQtr

3rdQtr

East

West

North

Bar graphs are another way to show data.

Double bar graphs help you to compare data.

Line graphs

Line graphs are good for showing changes in data over time when working with dates.

Double line graphs can help you show even more data and compare data.

Circle graphs/Pie Charts Circle or pie charts

are another way to show data, and compare data to percentages or fractions of a whole.

Pictographs Pictographs are

often used to show data in newspapers and magazines because they get your attention.

Each picture represents a specific number of data.

In conclusion Organizing data makes it easier to read

and understand. Using graphs and charts helps to get

the attention of your audienceCharts, line plots and graphs are ways

to organize data so it is useful to you.Comparing data is easier when it is

clear and specific.