Practice Topic 7 Assessment

The random numbers below represent 10 trials of a simulation.

2632, 1365, 9367, 2056, 0026,
6564, 1434, 8045, 4781, 8681

The numbers 0–7 represent students who watched television last night, and the numbers 8 and 9 represent students who did not. Based on the simulated data, what is the probability that exactly 2 out of a group of 4 randomly selected seventh-graders watched television last night?

A spinner has six equal-sized sections numbered 1, 1, 2, 2, 3, and 4. What is the sample space for the spinner?

• {1, 2, 3, 4}

• 
  {4, 3, 2, 1}

• {1, 2, 2, 3, 4}

• {1, 1, 2, 2, 3, 4}

A game has 15 balls for each of the letters B, I, N, G, and O. The table shows the results of drawing balls 1,250 times. For which letter is the experimental probability closest to the theoretical probability?

• B

• I

• N

• G

• O

In a game of chance, players spin the pointer of a spinner with six equal-sized sections. What are the probabilities of each outcome in the sample space? Select all that apply.

• P(2) = P(3) = P(4)

Heath records the number of winners of three Ring Toss games in the table. Based on the data recorded in the table, how many winners should Heath expect if there are 750 players?

Mathematical Equivalence

ON

The yearbook club is handing out T-shirts to its members. There are 5 blue, 7 green, 9 red, and 4 yellow T-shirts in all. If Jacob is handed a T-shirt, what is the probability that the color is red?

A principal randomly chose 40 students from grade 5. Of these students, 9 were wearing watches. Based on this information, what is the most reasonable prediction of the number of students wearing watches in a group of 120 students from grade 5?

• 27
• 9
• 18
• 80