Use equal intervals to make a frequency table for the average number of movies per person. You do not need to show tally marks.

Country Average Number of Movies
Turkey 0.5
Japan 1.2
UK 1.3
Finland 1.3
Austria 1.5
Germany 1.8
Spain 2.2
Sweden 2.2
Denmark 2.2
Switzerland 2.5
France 2.5
Norway 3.0
Canada 3.0
US 4.5

I don't understand how to use intervals

Btw these are wrong

To make a frequency table, you put the number you see and how many times it appears. Here's the frequency table I made for this problem:

0.5|1
1.2|1
1.3|2
1.5|1
1.8|1
2.2|3
2.5|2
3.0|2
4.5|1

I apologize if this is wrong.

Is it right?

@AmandaThripp

To create a frequency table using equal intervals for the average number of movies per person, we need to determine the range and decide on the width of the intervals.

Step 1: Find the range
The range is the difference between the highest and lowest values in the data set. In this case, the lowest average number of movies per person is 0.5 (Turkey), and the highest is 4.5 (US). Therefore, the range is 4.5 - 0.5 = 4.

Step 2: Decide on the interval width
To create equal intervals, we need to divide the range by the number of intervals we want. It is generally recommended to select a reasonable number of intervals, depending on the size of the data set. Since we have 13 data points here, we can start with around 4-5 intervals for simplicity.

Based on this, let's select a width of 1 for the intervals.

Step 3: Create the frequency table
Using the selected width of 1, we can start by counting the number of data points falling in each interval.

Interval Frequency
0.5-1.5 2
1.5-2.5 4
2.5-3.5 3
3.5-4.5 4

The frequency table has been created, and each interval represents a range of values for the average number of movies per person. For example, the interval 1.5-2.5 includes data points from countries like UK, Finland, Austria, Germany, Spain, and Sweden, which have average numbers of movies between 1.5 and 2.5.

18) You can make a stem-and-leaf plot as frequency table for "The chart below shows the average number of movies seen per person in selected countries. "

0 / . 5
1 / . 2 , . 3 , .3 , . 5
2 / . 2 , . 2 , . 2
3 / 0 , 0
4 / .5

19.) Mr. Green teaches band, choir, and math. This year, he has 57 students that take at least one of his classes. He teaches band to 25 students. There are 9 students who have Mr. Green for math and nothing else. Use the Venn diagram below: How many students take exactly 2 classes with Mr. Green?

Answer: 26 students take exactly 2 classes check the work below.
25 - ( 7 + 3 + 11) Use order of operations or pemdas
25 - ( 21 ) = 4 ** students who take both Band and Choir

Add 11 + 7 + 3 + 4 + 17 + 9 = 51

Subtract 57 - 42 = 15***Students take Math and Choir

Add 15 + 4 + 7 , these are the sections in the Venn Diagram where two circles share the same space.

15 + 4 + 7 = 26 ***** ANSWER

26 students take exactly two classes.

20.) Another stem-and-leaf plot problem.
| Percentage of
Countries | Households with Color Television

9| 3
6| 9
9| 5
8| 8
9| 4
6| 4
9| 2
8| 8
1| 00
9| 1
9| 7