Math Grade 7 Quiz Probability Models Based on Observational Frequencies – 7.SP.C.7.B
The focus of CCSS.MATH.CONTENT.7.SP.C.7.B is on developing probability models based on the observed frequencies from chance processes, which may not necessarily be uniform. This involves analyzing data from experiments and using the results to determine probabilities, rather than assuming equal likelihood for all outcomes. This quiz will test your ability to create and interpret such probability models, drawing on real-life scenarios and experimental data to calculate probabilities and to evaluate the likelihood of various outcomes.
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Question 1 of 10
1. Question
A class has 18 students; 10 are boys, and 8 are girls. If a student is selected at random, what is the probability the student is a girl?
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Question 2 of 10
2. Question
In a game, a player hits a target 4 out of 5 times. What is the probability the player will hit the target on the next attempt?
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Question 3 of 10
3. Question
A weather report shows that it has rained 15 days out of the last 30 days. What is the probability that it will rain tomorrow, based on this data?
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Question 4 of 10
4. Question
A spinner is divided into 4 equal sections colored red, blue, green, and yellow. After 100 spins, the spinner lands on blue 25 times. What is the probability it will land on blue on the next spin?
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Question 5 of 10
5. Question
In a box of 150 light bulbs, 30 are found to be defective. What is the probability that a randomly selected bulb is not defective?
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Question 6 of 10
6. Question
A coin is flipped 200 times, and it lands on heads 120 times. What is the experimental probability that it will land on heads on the next flip?
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Question 7 of 10
7. Question
In an experiment, a spinner with numbers from 1 to 5 is spun 100 times. The number 3 appears 40 times. Based on this data, what is the probability of landing on 3 in the next spin?
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Question 8 of 10
8. Question
A bag contains 5 red, 4 blue, and 6 green marbles. If a marble is drawn at random from the bag, what is the probability that it is green?
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Question 9 of 10
9. Question
A die is rolled 60 times, and the number 4 is rolled 15 times. Based on this data, what is the probability of rolling a 4 in the next roll?
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Question 10 of 10
10. Question
In a survey, 70% of people prefer product A over product B. If another person is chosen at random, what’s the probability they prefer product A?
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