Tuesday, November 4, 2008

Tally and Pictographs

To better understand the data you collect, you can use tally tables or pictographs to organize your data.


Example:
A class did a survey of the students' favorite drinks.


Here is the data they collected: The same data can be shown in a tally table OR a pictograph.






Tally Tables
For tally tables, each | represents one.
To count tallies faster, skip count by 5 for each .

Pictographs
Always remember to look at the Key so you know what each pictures means.
For example,










1.How many people voted for hip hop?
basket ball
baseball
soccer

2.How many total people voted for hip hop or classical?




1.Order the following (1, 2, or 3) from the most popular to the least popular.
2.If 17 students signed up for dodgeball, how would this be displayed on the graph?





1.Which type of movies is the most popular?
fantasy
comedy
drama
horror
foreign
romance

2.How many people voted for drama?




1.How many more students signed up for the most popular league than for the least popular league?

2.How many sign-ups were there in all?


Answers



1. How many people voted for hip hop?
2. How many total people voted for hip hop or classical?
Solution
hip hop + classical =
7 + 11 =
18


1.Order the following (1, 2, or 3) from the most popular to the least popular.
3 basketball
2 baseball
1 soccer
2. If 17 students signed up for dodgeball, how would this be displayed on the graph?

How many people voted for drama?
3 people

How many more students signed up for the most popular league than for the least popular league?
22 students
Solution
30 - 8 = 22

Soccer 22
Basketball 21
Baseball 8

How many sign-ups were there in all?
132sign-ups

Solution
22 + 8 + 22 + 29 + 21 + 30 = 132

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