Mathematics
Grade 8
15 min
Experimental probability
Experimental probability
Tutorial Preview
1
A coin is flipped 20 times and lands on heads 12 times. What is P(heads)?
2
A die is rolled 50 times. Results: (1: 8, 2: 10, 3: 7, 4: 9, 5: 6, 6: 10). Find P(rolling a 4).
3
A spinner landed on blue 8 times in 25 spins. Predict the number of blue spins in 100 spins.
Sample Practice Questions
Easy
A marble is drawn 10 times. A red marble is drawn 7 times. What is the experimental probability of drawing a red marble?
0.7/10
1.3/10
2.10/7
3.1/2
Easy
A spinner is spun 20 times and lands on green 5 times. What is the experimental probability of landing on green?
0.1/2
1.1/3
2.1/4
3.1/5
Easy
A survey asks 20 students their favorite color. Results: (Red: 8, Blue: 10, Green: 2). What is P(Blue)?
0.1/2
1.2/5
2.1/10
3.10/1
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