Frequency Tables and Histograms

1. Frequency Tables and Histograms Unit 2 Day 3

2. Data - information, often given in the form of numbers or categories. Frequency Table – a table that displays the number of times each item or category occurs in a data set. Vocabulary

3. EXAMPLE 1 Making a Frequency Table To find which type of art project was chosen most often, you can make a frequency table.

4. EXAMPLE 1 Making a Frequency Table To find which type of art project was chosen most often, you can make a frequency table.

5. EXAMPLE 1 Making a Frequency Table To find which type of art project was chosen most often, you can make a frequency table.

6. EXAMPLE 1 Making a Frequency Table To find which type of art project was chosen most often, you can make a frequency table. ANSWER The students most often chose a painting project.

7. Sarah’s math grades for one marking period were: 85, 72, 97, 81, 77, 93, 100, 75, 86, 70, 96, 80 Construct a frequency table for this data.

8. In a histogram, a bar is centered above each score (or class interval) so that the height of the bar corresponds to the frequency so that adjacent bars touch. Histograms

9. Gap! (why?)

10. Construct a Histogram for Sarah’s math scores