Homework Explained - Math Practice 101

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EXERCISES

Find the probability of each event.

• Question 1

Graciela picks a white mouse at random from a bin of 8 white mice, 2 gray mice, and 2 brown mice.

• Question 2

Theo spins a spinner that has 12 equal sections marked 1 through 12. It does not land on 1.

• Question 3

Tania flips a coin three times. The coin lands on heads twice and on tails once, not necessarily in that order.

• Question 4

Students are randomly assigned two-digit codes. Each digit is either 1, 2, 3, or 4. Guy is given the number 11.

• Question 5

Patty tosses a coin and rolls a number cube.

a. Find the probability that the coin lands on heads and the cube lands on an even number.

• Question 5

b. Patty tosses the coin and rolls the number cube 60 times. Predict how many times the coin will land on heads and the cube will land on an even number.

•  times
• Question 6

Rajan’s school is having a raffle. The school sold raffle tickets with 3-digit numbers. Each digit is either 1, 2, or 3. The school also sold 2 tickets with the number 000. Which number is more likely to be picked, 123 or 000?

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