
Predictions with Probability
Presentation
•
Mathematics
•
6th - 8th Grade
•
Medium
+1
Standards-aligned
Samantha Johnson
Used 337+ times
FREE Resource
3 Slides • 12 Questions
1
Predictions with Probability
> Students will be able to evaluate a prediction using probability.
> Students will write and solve percent expressions and proportions.
2
Review
Basic Probability
3
Multiple Choice
A regular 6-sided die is to be rolled once. What is the probability that a number less than 3 is rolled?
1/3
1/6
1/2
2/3
4
Multiple Choice
1/6
7/6
0
7/7
5
Multiple Choice
A dice was rolled five times and the following were rolled: 1, 3, 3, 4, 4
Based on this information, find the experimental P(1).
3/5
1/6
2/5
1/5
6
Multiple Choice
What is the P( not purple) on this spinner?
2/5
1/5
4/5
3/5
7
Multiple Choice
The chart below represents the number of marbles in a jar.
P(green) =
5/19
1/5
5/14
8
Multiple Choice
If you select a marble without looking, how likely is it that you will pick a black one?
certain
probable
unlikely
impossible
9
Predictions with
Probability
10
Multiple Choice
A bag contains 6 red and 10 black marbles. If you pick a marble, record its color, and return it to the bag, how many times can you expect to pick a black marble if you do the experiment 200 times?
120
60
125
160
11
Multiple Choice
15 times
20 times
25 times
30 times
12
Multiple Choice
A tennis player hits a serve that cannot be returned 45 percent of the time. Out of 300 serves, how many can you predict will not be returned?
400
300
240
135
13
Multiple Choice
The experimental probability that an SUV will pass by Ariel's store is 0.4.
If 500 cars pass by Ariel's store, predict how many will be SUVs.
200
100
20
150
14
Multiple Choice
Shannon has a bag of jelly beans, that has:
5 are green, 2 are red, & 3 are blue.
She removed one jelly bean, recording the color, and then replaced it. She repeated the process 44 times and record her results in the table.
What is the EXPERIMENTAL probability of her selecting a red jelly bean?
11/44
2/10
1/5
23/30
15
Multiple Choice
If the coin was flipped a total of 120 times, predict what is the experimental probability of landing on heads? (hint:set up a proportion)
13
65
42
68
Predictions with Probability
> Students will be able to evaluate a prediction using probability.
> Students will write and solve percent expressions and proportions.
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