Chance from experiments, and predicting from it
Grade 7 Math Worksheet
Circle the best answer, or write your answer on the line.
Face up 24 | face down 33 | on its edge 3. Ren tossed a button and tallied how it landed. Based on the tally, what is the estimated chance that the next toss lands face down, as a fraction in simplest form?
In the bucket 9 | on the rim 5 | missed 16. Tala tossed a bean bag at a bucket and tallied each toss. Based on the tally, what is the estimated chance that the next toss misses, as a fraction in simplest form?
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?
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?
Luz flipped a water bottle 30 times, and it landed on its side 18 times. About how many times should it land on its side in 240 flips?
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?
Ren's spinner has 10 equal parts, and 4 of them show a star. About how many stars should Ren expect in 150 spins?
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 Bo's 100 tosses
- Use Kira's 10 tosses
- Use both the same
Jun's seeds sprouted 24 of 30 times. Luz's seeds sprouted 30 of 40 times. Whose tally shows the larger share of sprouted seeds?
- Jun's tally
- The shares are the same
- Luz's tally
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 20, side 12, cap 8
- upright 1/2, side 3/10, cap 3/10
- upright 1/3, side 1/3, cap 1/3
- upright 1/2, side 3/10, cap 1/5