GTA - Chapter 9 Flashcard Review

Flashcard
•
Mathematics
•
9th - 12th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the probability of selecting a green or red marble from a bag containing 9 green, 5 yellow, and 6 red marbles?
Back
The probability is \( \frac{3}{4} \).
2.
FLASHCARD QUESTION
Front
If Mrs. Cox picks one marble from a bag of 5 blue, 4 red, and 3 orange marbles, replaces it, and picks another, what is the probability that she picks two that are not orange?
Back
The probability is \( \frac{9}{16} \).
3.
FLASHCARD QUESTION
Front
What is the probability of drawing a spade or a red card from a standard deck of cards?
Back
The probability is \( \frac{39}{52} \).
4.
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.
5.
FLASHCARD QUESTION
Front
What is the formula for calculating the probability of two independent events occurring?
Back
The formula is \( P(A) \times P(B) \).
6.
FLASHCARD QUESTION
Front
If you roll a number cube 50 times and get a 1 on 10 rolls, what is the experimental probability of rolling a 1?
Back
The experimental probability is \( \frac{10}{50} = \frac{1}{5} \).
7.
FLASHCARD QUESTION
Front
What is the probability of picking a blue marble, replacing it, and then picking a red marble from a bag containing 4 blue and 3 red marbles?
Back
The probability is \( \frac{4}{7} \times \frac{3}{7} \).
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