7th Grade Probability

The probability of flipping a coin and landing on tails is 1/2.
If you flip the coin 100 times, approximately how many times could you expect to land on tails?

• 50 times
• 100 times
• 200 times

Richard spun an spinner with 4 unequal sections 45 times.  He spun red: 10 times, white: 7 times, blue: 23 times, and purple: 15 times.  What is the experimental probability that he would spin a purple?

• 1/2
• 1/3
• 1/4
• 1/5

A bag contains 5 blue, 4 red, 9 white, and 6 green marbles.  If a marble is drawn at random and replaced 100 times, how many times would you expect to draw a green marble?

• 1/4
• 6
• 30
• 25

A baseball player reaches first base 30% of the time.  He predicts that he will get on base 40 out of 50 times at bat.  Do you agree with the prediction?

• Yes, that is an accurate prediction
• No, this prediction is too high.

What is the likelihood of rolling a number 7 on a standard number cube?

• Impossible
• Unlikely
• Likely
• Certain

What is the likelihood of rolling a number less than 7 on a standard number cube?

• Unlikely
• As likely as not
• Likely
• Certain

What is the probability of spinning red on a spinner that has red, white, and blue sections?

• 1/3
• 2/3
• 1/6
• 1/5

There are 4 queens in a standard deck of 52 cards.  You pick one at random.  What is the probability of NOT choosing a queen?

• 1/13
• 12/13
• 1/52
• 4/52

Shannon has a bag of jelly beans. She removed on jelly bean, recording the color, and then replaced it. She repeated the process several times and record her results in the table. What is the experimental probability of her selecting a red jelly bean?

• 11/33
• 1/3
• 1/4
• 18/26

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A jar contains 2 green marbles, 4 blue marbles, 3 yellow marbles, and 2 black marbles. A marble is chosen at random from the jar and replaced. Then a second marble is chosen at random. Find the probability of the first marble being green and the second marble being yellow. 

• 4/121
• 8/121
• 3/121
• 6/121

Tags

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CCSS.7.SP.C.7

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