Probability

1. Probability & Graphing Click here to begin the activity. This slide show has been created by Eric Arbetter at Barrington Elementary School.

2. These activities will address the following Hazelwood Objectives for fifth grade: Explain math concepts and problem solutions orally and in writing. Determine possible outcomes and decide if outcomes are equally likely. State the possibility of a simple event. Construct and interpret graphs from student generated data.

3. Bobby did a survey of his neighborhood. He asked his neighbors what color car they had. He recorded the results on a table. Click your mouse to see his table.

4. Car Colors Click the mouse to continue.

5. Using Bobby’s table, answer the following questions. If you need to see the table again, click on the following button: To get back to the slide you were on, click on the color found in the slide’s bottom right corner. Make sure you look to see what the color is before you go to the table. Click your mouse to begin.

6. What are the possible colors of Bobby’s neighbors’ cars? Click your mouse to see the answer. The neighbors’ cars can be blue, green, red, yellow, black, or white. Click the mouse to continue.

7. What color car is the most popular? Explain your answer. Click your mouse to see the answer. Red is the most popular car because more people have that car than any other color. Click the mouse to continue.

8. What color car is the least popular? Explain your answer. Click your mouse to see the answer. Yellow is the least popular car because less people have that car than any other color. Click the mouse to continue.

9. What is the probability that Bobby’s next door neighbor has a yellow car? Explain your answer. Click your mouse to see the answer. The car has a 4/45 chance of being yellow because 4 cars are yellow out of a total of 45 cars. Click the mouse to continue.

10. What is the probability that Bobby’s back neighbor has a white car? Explain your answer. Click your mouse to see the answer. The car has a 9/45 or 1/5 chance of being white because there are 9 white cars out of a total of 45. 9/45 is 1/5 in lowest terms. Click the mouse to continue.

11. What is the probability that Bobby’s mother has a brown car? Explain your answer. Click your mouse to see the answer. Her car has no chance of being brown. According to Bobby’s results, there were no brown cars. Click the mouse to continue.

12. What is the probability that Bobby’s mother does not have a black car? Explain your answer. Click your mouse to see the answer. There is a 4/5 chance that she does not have a black car. If I add up all the cars that are not black, I get 36. This means that there is a 36 to 45 probability that her car is not black. 36/45 is 4/5 in lowest terms because 9 goes into 36 4 times and 9 goes into 45 5 times. Click the mouse to continue.

13. What is the probability that Bobby’s neighbor across the street has a red or blue car? Explain your answer. Click your mouse to see the answer. There is a 16/45 chance that the car is red or blue. If you add the red and blue cars together, you get 16. This means that 16 out of the 45 cars are red or blue. Click the mouse to continue.

14. Click your mouse to see a sample answer. Using Bobby’s results, help him make a graph showing his results. Don’t forget to label everything.

15. The Color of Cars found in My Neighborhood # o f c a r s 12 10 8 6 4 2 0 Blue Green Yellow Red Black White Color of Cars The End