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
wrong
20 was definitely wrong it's supposed to be something like this,
6|4,9
8|8,8
9|1,2,3,4,5,7,7
10|0
19. I believe was 17, that's what it was for me. You seem to have the same test like me.
18. I don't know what it is.
(Sorry my answers are backward)
Oops, I forgot some words in 19. I believe *the answer is 17*
bfc
To create a frequency table using equal intervals for the average number of movies per person, we first need to determine the range of the data. The range is the difference between the highest and lowest values.
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.
Next, we need to decide on the width of each interval. In this case, we will use an interval width of 1. This means that we will group the data into intervals of size 1.
Now, we can start creating the frequency table. Here's how it would look:
Interval Frequency
-------------------------
0.5 - 1.4 4
1.5 - 2.4 4
2.5 - 3.4 2
3.5 - 4.4 1
To determine the frequency for each interval, we count the number of values that fall within that interval. For example, in the interval 0.5 - 1.4, there are 4 countries (Turkey, Japan, UK, and Finland) with average numbers of movies falling within that range. Similarly, in the second interval, there are 4 countries, and so on.
Note that we do not need to show tally marks in this case since we are using equal intervals, and the data already gives us the frequency counts.
I just realized what the teacher wants (I think).
put along the horizontal axis the movies seen(from 0 to 5) marks equally spaced. I would do in .5 increments (as in 0-.499, .5-1.0, 1.0-1.499, etc)
then, on the vertical axis, mark in that increment how many countries fell into that space.
You should have a graph that looks something like a "bell shape".
That is a frequency plot
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