7.SP.C.7 Math Practice Questions — Sports Academy Games

Practice playeasy

A jar contains $5$ red tokens and $7$ blue tokens. One token is chosen at random. What is the probability that the token is red?

There are $5 + 7 = 12$ tokens in all and $5$ are red, so $P(\text{red}) = \dfrac{5}{12}$ .

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A standard die is rolled. What is the probability of not rolling a $6$ ?

Five of the six faces are not $6$ , so $P = 1 - \dfrac{1}{6} = \dfrac{5}{6}$ .

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A game spinner is divided into $12$ equal sections. Exactly $4$ sections are gold and the rest are silver. What is the probability that the spinner lands on gold on one spin?

$P(\text{gold}) = \dfrac{4}{12} = \dfrac{1}{3}$ .

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A bag holds $3$ red marbles and $5$ blue marbles. One marble is drawn at random. What is the probability it is red?

There are $3 + 5 = 8$ marbles in all, and $3$ are red, so $P(\text{red}) = \dfrac{3}{8}$ .

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One letter is chosen at random from the word STUDENT. What is the probability that the letter is a vowel?

STUDENT has $7$ letters. The vowels are U and E, so $P(\text{vowel}) = \dfrac{2}{7}$ .

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A spinner has $5$ equal sections: $1$ red, $2$ blue, and $2$ green. What is the probability the spinner does not land on red?

Four of the five equal sections are not red, so $P = \dfrac{4}{5}$ .

Practice playeasy

A bowl contains $4$ lemons and $9$ limes. One piece of fruit is chosen at random. What is the probability that the fruit is a lime?

There are $4 + 9 = 13$ pieces of fruit and $9$ are limes, so $P(\text{lime}) = \dfrac{9}{13}$ .

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A spinner has $8$ equal sections: $2$ are green and $6$ are yellow. What is the probability the spinner lands on green?

$P(\text{green}) = \dfrac{2}{8} = \dfrac{1}{4}$ .

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