Experimental Probability Review

What is the probability of spinning red?

• 0

• 1/2

• 3/4

• 1

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

Hannah designs and conducts a computer simulation with 20 trials and uses the data to create the relative frequency bar graph shown. The graph shows the relative frequency of the number of rolls needed in order to roll all of the different numbers on a number cube. According to the results of the simulation, what is the experimental probability that 9 or more rolls are needed to roll all of the different numbers? Express your answer as a percent.

(a)  

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 an even number

• spinning a number greater than 5

• spinning a 4 or 5

Which of the following best describes the likelihood of the spinner landing on a number less than 6?

• impossible

• unlikely

• equally likely

• likely

• certain

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%

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?

(a)  

Papa Johns wants to determine how often it delivers to three different areas of Twinsburg. The table shows the areas from a random sample of 80 deliveries. Based on this data, if the driver makes 200 deliveries, how many will be to the southern area of Twinsburg?

• 35

• 55

• 80

• 110

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.)