Dot Plots and Frequency Tables

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Data Representations

• Information collected about people, events or objects

• Categorical or Numerical

• Ways to collect: Survey, interview, polls, spontaneous

• Ways to record: Frequency table, dot plot, stem-leaf plot

• Organized in rows and columns

• One tally=one representation

• Quick for tallying a large amount of info​

Frequency Tables

• Uses titles, subtitles, and labels

• One "dot" = one representation

• Each "dot" can represent > 1

​

Dot Plot

Multiple Choice

Frequency tables use marks called _______ to represent each representation.

• frequencies

• frequently

• tallies

• totals

Multiple Choice

• 3

• 2

• 4

• 1

Multiple Choice

• 1 1/2

• 1/2

• 3/4

• 2

Multiple Choice

• A

• B

• C

• D

Multiple Choice

• A

• B

• C

• D

Multiple Choice

How many cars were sold on Saturday and Sunday?

• 5
• 3
• 8
• 10

Multiple Choice

How many strings were measured in all?

• 12
• 11
• 7
• 2

Multiple Choice

How many pieces of fudge sold on Saturday were smaller than 2 pounds? 

• 7 pieces
• 10 pieces
• 20 pieces
• 10 

Multiple Choice

How many students had more than 6 candy bars?

• 5
• 2
• 3
• 1

Multiple Choice

What was the day with the least amount of cars sold?

• Monday

• Tuesday

• Wednesday

• Thursday

Remember

• Each dot represents one representation unless otherwise stated

• To find the total add the tallies/dots

• Make sure that responses = tallies/dots (not more than one)

• Label your axis' so that it is easy to graph and read

• What do you want to know.....???

• Questions?