Probability

If each spinner has equal-sized sections, what is the probability of selecting a D on the first spinner and a 3 on the second spinner?

• 1/16

• 1/12

• 1/6

• 1/4

Maria wants to determine the probability that in a litter of 6 puppies, there will be more male puppies than females. Which statement describes one trial of a simulation she could use to model this situation? (This question is not on your paper, you don't need to show your work)

• Toss a counter 6 times and count the number of times it lands on red

• Toss a 6-sided number cube 5 times and count the number of times you get a number less than 3.

• Generate 6 random numbers between 0 and 100 and count the number of prime numbers

• Draw 6 cards at random from a standard 52- card deck, replacing each card after it is drawn and count the number of hearts.

Tags

CCSS.7.SP.C.8C

You have a jar of marbles in front of you with the following colors: 7 red, 10 blue, 6 yellow, and 2 white. Suppose you had a larger jar of 300 marbles with the same ratio of colors. What is the probability of randomly selecting either a red or blue marble?

• 17/25

• 1/2

• 17/300

• 13/25

Tags

CCSS.7.SP.C.7B

Jack tossed a coin three times. Which tree diagram shows all the possible outcomes of the coin landing heads up or tails up?

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Tags

CCSS.7.SP.C.8B

What is a simulation that could produce this list of possible outcomes?

AAA,  AAB,  ABA,  ABB,  BAA, BAB,  BBA, BBB

• A spinner with three equal-sized sections labeled A, B, and C spun 8 times

• A six-sided fair cube labeled using the first 6 letters of the alphabet tossed eight times

• A two-sided chip labeled with A and B flipped eight times

• A spinner with two equal-sized sections labeled A and B spun 3 times.

Tags

CCSS.7.SP.C.8C

An experiment of spinning the spinners shown and adding the numbers together. Both spinners have congruent sections. What is the probability as a fraction in simplest terms of spinning a sum less than 3? (Create a list or a tree diagram to get all of the sample space to help)

• 1/6

• 2/3

• 5/9

• 2/9

Tags

CCSS.7.SP.C.8B

An experiment of spinning the spinners shown and adding the numbers together. Both spinners have congruent sections. What is the probability as a fraction in simplest terms of spinning the sum of 5 or 4? (Create a list or a tree diagram to get all of the sample space to help)

Tags

CCSS.7.SP.C.8B

Sarah flipped a two-color counter 2 times during a probability simulation.  The counter is red on one side and yellow on the other side.  The outcomes of the first 25 trials are shown in the table. Based on the information in the table, predict how many of the next 75 trials will have an outcome with at least 1 chip counter showing yellow.

Tags

CCSS.7.SP.C.8C

Sarah flipped a two-color counter 2 times during a probability simulation.  The counter is red on one side and yellow on the other side.  The outcomes of the first 25 trials are shown in the table. Based on the information in the table, predict how many of the next 60 trials will have an outcome with matching colors for the two flips of the chip counter.

Tags

CCSS.7.SP.C.6

An experiment consists of tossing a fair coin 3 times.  How many possible outcomes are there for this experiment? ( draw a tree diagram or make a outcome list to help you)