Probability Review Bronzini

Joseph rolled a number cube 50 times. The table shows the cumulative results of each roll. What is the relative frequency of rolling a 4? Select all that apply.

• 0.18

• 67.7%

• 18%

Lauren spins the spinner with 8-equal sized sections one time. Drag the tiles to arrange the events in order from least likely to most likely.

• spinning a 6

• spinning a 4 or 5

• spinning an even number

• spinning a number greater than 5

A box contains 4 red pencils, 6 blue pencils, 5 black pencils, and 3 green pencils. The best description of the likelihood of selecting a blue pencil at random from the box is ​​​ (a)   . ​ ​

• unlikely

• impossible

• equally likely

• likely

• certain

Suppose a 4 is rolled on a number cube with sides numbered 1, 2, 3, 4, 5, and 6. Which outcomes(s) make up the complement of this event? Select all that apply.

• rolling a 2

• rolling a 3

• rolling a 4

• rolling a 5

• rolling a 6

Suppose a 4 is rolled on a number cube with sides numbered 1, 2, 3, 4, 5, and 6. The complement of this event would be rolling a 1, 2, 3, 5, or 6. What is the probability of the complement, written as a fraction in simplest form?

If you toss a coin 10 times and get tails each time, which of the following is true?

• The probability of getting a tail on the next toss is greater than the probability of getting a head.

A fair spinner with sections 1 through 5 is spun 50 times. The results are shown in the table. Which section's experimental probability (relative frequency) comes closest to it's theoretical probability?

• Section 1

• Section 2

• Section 3

• Section 4

• Section 5

Julie created a weighted number generator that produces the integers 0 to 4. She then runs the generator 500 times. The results are shown in the table. If Julie runs the generator a total off 4,000 times, which is the closest to the expected number of times the integer 1 is produced?

• 385

• 590

• 975

• 1225

A coin is flipped three times. What is the probability that the coin will land tails up once and heads up twice, if the order doesn't matter?

(Hint: Draw a tree diagram to help you.)

Probability ranges from 0 (impossible) to 1 (certain).

• true

• false