Chapter 3/Probability Review

Flashcard
•
Mathematics
•
7th Grade
•
Hard
+8
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1.
FLASHCARD QUESTION
Front
What is the result of multiplying the fractions \( \frac{7}{10} \) and \( \frac{3}{5} \)?
Back
The result is \( \frac{21}{50} \).
Tags
CCSS.5.NF.B.6
2.
FLASHCARD QUESTION
Front
How do you perform the operation \( 20 \div 4 \cdot 5 \)?
Back
First, divide 20 by 4 to get 5, then multiply by 5 to get 25.
Tags
CCSS.5.OA.A.1
CCSS.5.OA.A.2
3.
FLASHCARD QUESTION
Front
In which fraction operation can you cross cancel?
Back
You can cross cancel in multiplication of fractions.
Tags
CCSS.5.NF.B.6
4.
FLASHCARD QUESTION
Front
What is the probability of drawing two purple marbles from a box containing 5 purple, 3 green, and 2 orange marbles without replacement?
Back
The probability is \( \frac{2}{9} \).
Tags
CCSS.HSS.CP.B.9
5.
FLASHCARD QUESTION
Front
If a jar contains 2 pink, 6 red, and 4 blue marbles, what is the probability of picking a red or blue marble?
Back
The probability is \( \frac{5}{6} \).
6.
FLASHCARD QUESTION
Front
What is the formula for calculating the probability of an event?
Back
The probability of an event is calculated as \( P(E) = \frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}} \).
Tags
CCSS.7.SP.C.7A
7.
FLASHCARD QUESTION
Front
What does it mean to cross cancel in fraction multiplication?
Back
Cross canceling means to simplify fractions before multiplying by dividing the numerator of one fraction by the denominator of another if they share a common factor.
Tags
CCSS.5.NF.B.6
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