Record and Interpret Record and Interpret DataData

SWBAT make and interpret SWBAT make and interpret frequency tables frequency tables

DefinitionsDefinitions

Cumulative frequency table Cumulative frequency table A table to record and organize data. Talley marks are A table to record and organize data. Talley marks are

made to keep track of groups of data and added up to made to keep track of groups of data and added up to get the total frequency. get the total frequency.

Ungrouped frequency table Ungrouped frequency table A table to record and organize data. Each individual A table to record and organize data. Each individual

response is recorded instead of being grouped response is recorded instead of being grouped

Relative frequency Relative frequency Compares the frequency of a category to the total Compares the frequency of a category to the total

frequency frequency

ExamplesExamples

The times of the MS 100 meter dash have been The times of the MS 100 meter dash have been recorded as follows:recorded as follows:

14.214.2 14.414.4 13.913.9 14.914.9 14.414.413.813.8 14.414.4 14.314.3 13.813.8 14.214.214.614.6 13.713.7 15.115.1 13.913.9 14.014.013.813.8 14.414.4 15.415.4 15.215.2 13.813.814.414.4 14.114.1 14.214.2 13.713.7 14.214.214.414.4 14.614.6 14.114.1 15.115.1 13.813.8Create a frequency tableCreate a frequency table

ExamplesExamplesHow many long jumps How many long jumps were recorded?were recorded?Within which interval Within which interval do most jumps fall?do most jumps fall?How many more How many more students jumped from students jumped from 1.4-1.6 than from 1.7-1.4-1.6 than from 1.7-1.9?1.9?What is a conclusion What is a conclusion you can draw from you can draw from this data?this data?

Distances: standing long Distances: standing long jumpjump

MetersMeters TallyTally FreqFreq Cum Cum FreqFreq

1.1-1.31.1-1.3

1.4-1.61.4-1.6 1111

1.7-1.91.7-1.9 55

2.0-2.22.0-2.2

2.3-2.52.3-2.5

6 6

17

22

2 24

2 26

Create a frequency table for the Create a frequency table for the data and answer the questionsdata and answer the questions

How many softball throws were recorded?How many softball throws were recorded?

Which distance was thrown most often?Which distance was thrown most often?

Which distance was thrown exactly 4 times?Which distance was thrown exactly 4 times?

What is a conclusion you can draw from this?What is a conclusion you can draw from this?

Softball Throw: Grade 6 (distance in m)Softball Throw: Grade 6 (distance in m)

2121 2020 2828 2121 2424 2020 2222 2828

2020 2828 2626 2424 2121 2323 2828 2626

2929 2323 2929 2020 2323 2020 2121 2828