Worksheet

Chance from experiments, and predicting from it

Grade 7 Math Worksheet

NameDate

Circle the best answer, or write your answer on the line.

  1. Upright 12 | on its side 21 | on its cap 7. Pia flipped a water bottle and tallied how it landed. Based on the tally, what is the estimated chance that the next flip lands on its side, as a fraction in simplest form?

  2. Upright 10 | on its side 17 | on its cap 3. Zee flipped a water bottle 30 times. Based on the tally, what is the estimated chance that the next flip lands on its side, to the nearest hundredth?

  3. In the bucket 25 | missed 20. Bo tossed a bean bag into a bucket 45 times. Based on the tally, what is the estimated chance that the next toss goes in, to the nearest hundredth?

  4. Sprouted 28 | did not sprout 8. Esme planted 36 seeds in a row of pots. Based on the tally, what is the estimated chance that a seed sprouts, to the nearest whole percent?

  5. Milo tossed a bean bag at a bucket 40 times, and it went in 8 times. About how many of the next 300 tosses should go in?

  6. Ren's spinner has 10 equal parts, and 4 of them show a star. About how many stars should Ren expect in 150 spins?

  7. Kira tossed a button 10 times and got face up 7 times. Bo tossed it 100 times and got face up 56 times. Whose results are the better guide for the next toss?

    • Use Kira's 10 tosses
    • Use Bo's 100 tosses
    • Use both the same

  8. Luz planted 8 seeds and 6 sprouted. Milo planted 80 seeds the same way and 52 sprouted. Whose results are the better guide for the next seed?

    • Use both the same
    • Use Milo's 80 seeds
    • Use Luz's 8 seeds

  9. Noah tossed a bean bag 12 times and got 9 in the bucket. Pia tossed 120 times and got 66 in. Whose results are the better guide for the next toss?

    • Use Pia's 120 tosses
    • Use Noah's 12 tosses
    • Use both the same

  10. Zee flipped a water bottle 40 times: upright 20, on its side 12, on its cap 8. Which model of chances fits the tally?

    • upright 1/2, side 3/10, cap 3/10
    • upright 20, side 12, cap 8
    • upright 1/3, side 1/3, cap 1/3
    • upright 1/2, side 3/10, cap 1/5
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Chance from experiments, and predicting from it

Answer Key - Grade 7 Math Worksheet

Circle the best answer, or write your answer on the line.

  1. Upright 12 | on its side 21 | on its cap 7. Pia flipped a water bottle and tallied how it landed. Based on the tally, what is the estimated chance that the next flip lands on its side, as a fraction in simplest form?

    21/40

  2. Upright 10 | on its side 17 | on its cap 3. Zee flipped a water bottle 30 times. Based on the tally, what is the estimated chance that the next flip lands on its side, to the nearest hundredth?

    0.57

  3. In the bucket 25 | missed 20. Bo tossed a bean bag into a bucket 45 times. Based on the tally, what is the estimated chance that the next toss goes in, to the nearest hundredth?

    0.56

  4. Sprouted 28 | did not sprout 8. Esme planted 36 seeds in a row of pots. Based on the tally, what is the estimated chance that a seed sprouts, to the nearest whole percent?

    78

  5. Milo tossed a bean bag at a bucket 40 times, and it went in 8 times. About how many of the next 300 tosses should go in?

    60

  6. Ren's spinner has 10 equal parts, and 4 of them show a star. About how many stars should Ren expect in 150 spins?

    60

  7. Kira tossed a button 10 times and got face up 7 times. Bo tossed it 100 times and got face up 56 times. Whose results are the better guide for the next toss?

    • Use Kira's 10 tosses
    • Use Bo's 100 tosses
    • Use both the same

  8. Luz planted 8 seeds and 6 sprouted. Milo planted 80 seeds the same way and 52 sprouted. Whose results are the better guide for the next seed?

    • Use both the same
    • Use Milo's 80 seeds
    • Use Luz's 8 seeds

  9. Noah tossed a bean bag 12 times and got 9 in the bucket. Pia tossed 120 times and got 66 in. Whose results are the better guide for the next toss?

    • Use Pia's 120 tosses
    • Use Noah's 12 tosses
    • Use both the same

  10. Zee flipped a water bottle 40 times: upright 20, on its side 12, on its cap 8. Which model of chances fits the tally?

    • upright 1/2, side 3/10, cap 3/10
    • upright 20, side 12, cap 8
    • upright 1/3, side 1/3, cap 1/3
    • upright 1/2, side 3/10, cap 1/5