Probability, 7th grade

What is the probability of rolling a 3 on a number cube?

• 3/6
• 1/6
• 1/4

Tags

CCSS.7.SP.C.5

You flip a coin twice.  What is the complete sample space of possible combinations?

• HH, HT, TH, TT
• H, T
• HH, HT, TT

Tags

CCSS.7.SP.C.8

The cafeteria is serving three kinds of sandwiches:  tuna (T), chicken, (C), and peanut butter (P).  They are also serving a choice of two drinks:  milk (M) or water (W).  Which is the complete set of possibilities of combinations?

• TW, CW, PW
• TW, TM, TW, CW, PW
• TW, TM, CW, CM, PW, PM

Tags

CCSS.7.SP.C.8B

A bag has 10 marbles:  3 blue, 2 yellow, 4 red, and 1 purple.
What is the probability of picking out a purple marble?

• 3/10
• 1/10
• 4/10

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

A spinner has 8 sections: 2 purple, 2 yellow, 3 blue, and 1 red.
What is the probability of spinning and landing on a color that is not yellow?

• P(not yellow) = 6/8
• P(not yellow) = 2/8
• P(not yellow) = 6

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

A spinner has 8 sections: 2 purple, 2 yellow, 3 blue, and 1 red.
What is the probability of spinning and landing on a blue or purple section?

• P(blue or purple) = 2/8
• P(blue or purple) = 3
• P(blue or purple) = 5/8

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

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

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

CCSS.7.SP.C.6

If you roll a number cube 36 times, approximately how many times could you expect to land on the 3?

• 12 times
• 15 times
• 6 times

Tags

CCSS.7.SP.C.6

You flip a coin two times.  What is the probability that you will land on tails both times?
(Hint:  find all of your possibilities and see how many are TT)

• 1/4
• 1/2
• 3/4

You roll a number cube 50 times to see how many times you roll a 6.
Is this experimental probability or theoretical probability?

• experimental probability
• theoretical probability
• neither