Name______Date______Class______
Practice B
Experimental Probability
Identify the sample space and the outcome shown for each experiment.
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10-36Holt McDougal Algebra 1
Name______Date______Class______
1.spinning a spinner
______
______
2.tossing two coins
______
______
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10-36Holt McDougal Algebra 1
Name______Date______Class______
Write impossible, unlikely, as likely as not, likely, or certain to describe each event.
3.The mail was delivered before noon on 4 of the last 5 days.
The mail will be delivered before noon today.______
4.Sean rolls a number cube and gets an even number.______
5.The pages of a book are numbered 1 350. Amelia begins
reading on page 400.______
An experiment consists of rolling a standard number
cube. Use the results in the table to find the
experimental probability of each event.
6.rolling a 1______
7.rolling a 5______
8.not rolling a 3______
9.not rolling a number less than 5______
10.A tire manufacturer checks 80 tires and finds 6 of them to be defective.
a.What is the experimental probability that a tire
chosen at random will be defective?______
b.The factory makes 200 tires. Predict the number
of tires that are likely to be defective.______
11.A safety commission tested 1500 electric scooters and found
that 15 of them had defective handles.
a.What is the experimental probability that a scooter will
have a defective handle?______
b.The factory makes 40,000 scooters. Predict the number
of scooters that are likely to have defective handles.______
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10-36Holt McDougal Algebra 1
5.The horizontal axis is not equally spaced. Someone might believe a lot of miles were put on very quickly when the car was new.
LESSON 10–5
Practice A
1.sample space: {1, 2, 3, 4, 5, 6};
outcome {5}
2.sample space: {A, B, C, D};
outcome {A}
3.impossible4.as likely as not
5.likely6.
7.8.
9.
10.a.15%
b.45
11.a.14%
b.70
Practice B
1.sample space: {1, 2, 3, 4, 5}; outcome {2}
2.sample space: (HH, HT, TH, TT); outcome (HT)
3.likely4.as likely as not
5.impossible6.
7.8.
9.
10.a.7.5%
b.15
11.a.1%
b.400
Practice C
1.sample space: {A1, B1, C1, D1, A2, B2, C2, D2, A3, B3, C3, D3, A4, B4, C4, D4, A5, B5, C5, D5, A6, B6, C6, D6}; outcome {C2}
2.sample space: (HHH, HHT, HTH, HTT, THH, THT, TTH, TTT); outcome (HHH)
3.as likely as not4.impossible
5.unlikely6.
7.8.
9.a.68.75%
b.22
10.a.6.25%
b.2
Review for Mastery
1.{1, 2, 3, 4, 5, 6}
2.(A, B, C, D, E)
3.a.
b.
c.
d.
4.a.99%
b.likely
c.792
5.a.4%
b.unlikely
c.1
Challenge
1.Neither the number of favorable outcomes nor the number of total outcomes can be negative.
2.because the numerator is always less than or equal to the denominator
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A44Holt McDougal Algebra 1