Mathematics
Grade 7
15 min
Experimental probability
Experimental probability
Tutorial Preview
1
A spinner was spun 20 times. It landed on blue 5 times. What is the experimental probability of landing on blue?
2
A bag has marbles. You pull one 50 times, replacing it each time. You pull a red marble 30 times. What is P(red)?
3
You flip a coin 10 times and get 7 heads. Based on this, how many heads would you expect in 100 flips?
Sample Practice Questions
Easy
A coin is flipped 10 times. It lands on tails 4 times. What is the experimental probability of landing on tails?
0.4/10
1.6/10
2.4/6
3.1/2
Easy
A spinner is spun 10 times. It lands on red 3 times. What is the experimental probability of landing on red?
0.3/10
1.7/10
2.3/7
3.1/3
Easy
From a deck of cards, a card is drawn 20 times (and replaced). A heart is drawn 5 times. What is P(heart)?
0.1/2
1.1/3
2.1/4
3.1/5
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