SImple Probability
Flashcard
•
Mathematics
•
7th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is experimental probability?
Back
Experimental probability is the ratio of the number of times an event occurs to the total number of trials or experiments conducted.
2.
FLASHCARD QUESTION
Front
How do you calculate experimental probability?
Back
Experimental probability = (Number of successful outcomes) / (Total number of trials)
3.
FLASHCARD QUESTION
Front
If a spinner has 5 equal sections, what is the probability of landing on any one section?
Back
1/5 or 20%.
4.
FLASHCARD QUESTION
Front
What is the probability of landing on a number greater than 2 on a spinner with numbers 1 to 5?
Back
The probability is 3/5 or 60%.
5.
FLASHCARD QUESTION
Front
If you spin a spinner 100 times and land on a 3, 20 times, what is the experimental probability of landing on 3?
Back
The experimental probability is 20/100 = 1/5 or 20%.
6.
FLASHCARD QUESTION
Front
What is the probability of pulling a green marble from a bag containing 8 green, 2 red, and 10 blue marbles?
Back
The probability is 8/(8+2+10) = 8/20 = 2/5 or 40%.
7.
FLASHCARD QUESTION
Front
If you spin a spinner with 4 colors (red, blue, green, yellow) and red appears 10 times out of 40 spins, what is the experimental probability of spinning red?
Back
The experimental probability is 10/40 = 1/4 or 25%.
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