Homework Explained - Math Practice 101

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Grade 7 Homework Resolved - GM
  • Question 7 (request help)

    Suppose you know that over the last 10 years, the probability that your town would have at least one major storm was 40%. Describe a simulation that you could use to find the experimental probability that your town will have at least one major storm in at least 3 of the next 5 years.

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  Unit 6 Performance Tasks  

  • Question 8 (request help)

    Meteorologist

    A meteorologist predicts a 20% chance of rain for the next two nights, and a 75% chance of rain on the third night.

    a. On which night is it most likely to rain? On that night, is it likely to rain or unlikely to rain?

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  • Question 8 (request help)

    b. Tara would like to go camping for the next 3 nights, but will not go if it is likely to rain on all 3 nights. Should she go? Use probability to justify your answer.

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  • Question 9 (request help)

    Sinead tossed 4 coins at the same time. She did this 50 times, and 6 of those times, all 4 coins showed the same result (heads or tails).

    a. Find the experimental probability that all 4 coins show the same result when tossed.

  • Question 9 (request help)

    b. Can you determine the experimental probability that no coin shows heads? Explain.

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  • Question 9 (request help)

    c. Suppose Sinead tosses the coins 125 more times. Use experimental probability to predict the number of times that all 4 coins will show heads or tails. Show your work.

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