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anonymous

  • one year ago

Kane used a probability simulator to roll a 6-sided number cube and flip a coin 100 times. The results are shown in the tables below: Using Kane's simulation, what is the probability of rolling a 2 on the number cube and the coin landing heads up?

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  1. anonymous
    • one year ago
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  2. anonymous
    • one year ago
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    I though i would subtract 2 from the total but guess not how it is .

  3. anonymous
    • one year ago
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    would be 87/100

  4. Vocaloid
    • one year ago
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    take a look at the table what is the probability of rolling a 2?

  5. anonymous
    • one year ago
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    32

  6. Vocaloid
    • one year ago
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    not quite, remember that probability of rolling a 2 = (number of 2's/total number of rolls)

  7. Vocaloid
    • one year ago
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    your answers should be a fraction

  8. anonymous
    • one year ago
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    32/6

  9. Vocaloid
    • one year ago
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    how many times was the die rolled?

  10. anonymous
    • one year ago
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    5 1/3 or 5.33

  11. Vocaloid
    • one year ago
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    I'll ask again, how many times was the number cube rolled?

  12. anonymous
    • one year ago
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    6

  13. Vocaloid
    • one year ago
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    please read the problem again how many times was the number cube rolled?

  14. anonymous
    • one year ago
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    100

  15. Vocaloid
    • one year ago
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    right so, the probability of rolling 2 = (number of 2's/total number of rolls) = ?

  16. anonymous
    • one year ago
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    2/100?

  17. Vocaloid
    • one year ago
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    how many times did 2 get rolled?

  18. anonymous
    • one year ago
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    50

  19. Vocaloid
    • one year ago
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    please read the table again how many times did 2 get rolled?

  20. anonymous
    • one year ago
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    32

  21. Vocaloid
    • one year ago
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    right, so probability of rolling 2 = (number of 2 rolled/total number of rolls) = ?

  22. anonymous
    • one year ago
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    2/32

  23. Vocaloid
    • one year ago
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    not quite, let's try again... how many times did 2 get rolled?

  24. anonymous
    • one year ago
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    32

  25. Vocaloid
    • one year ago
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    right, and how many total rolls were there?

  26. anonymous
    • one year ago
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    100

  27. anonymous
    • one year ago
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    32/100

  28. Vocaloid
    • one year ago
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    yes! now let's move on to the next step of the problem

  29. Vocaloid
    • one year ago
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    now, we need to find the probability of the coin landing heads up probability of heads = (number of heads/total number of coin flips) = ?

  30. anonymous
    • one year ago
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    55/6

  31. Vocaloid
    • one year ago
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    how many times was the coin flipped?

  32. anonymous
    • one year ago
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    100

  33. Vocaloid
    • one year ago
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    right, so... probability of heads = (number of heads/total number of coin flips) = ?

  34. anonymous
    • one year ago
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    55/100

  35. Vocaloid
    • one year ago
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    right, now we multiply the two probabilities together (32/100)*(55/100) = ?

  36. anonymous
    • one year ago
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    .176

  37. Vocaloid
    • one year ago
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    great! that's it

  38. anonymous
    • one year ago
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    i would convert to fraction

  39. Vocaloid
    • one year ago
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    176/1000

  40. anonymous
    • one year ago
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    thanks

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