Theoretic and Experimental Probability

A certain brand of TV has a 50% chance of being defective. Which model could be used to determine the probability that when two TVs are chosen, they will both be defective?

• spin a spinner with 4 equal sections

• roll a die twice

• flip a coin twice

• flip a coin, then roll a die

What is P(Foreign language | Sport)?

• 14/27

• 7/12

• 23/47

• 37/47

What percentage of the days that it rained, did they forecast no rain?

• About 20%

• About 18%

• About 14%

• About 12%

A bag contains 5 red marbles and 4 pink marbles. A marble is randomly drawn and then replaced. What is the probability the first marble is pink and the second is red?

• 26.9%

• 24.7%

• 20.0%

• 5%

A spinner is spun and the results are shown in the chart. 
Which of the following statements is true about the probability of spinning a blue?

• The experimental probability and theoretical probability are equal.

• The experimental probability is less than the theoretical probability.

• The experimental probability is greater than the theoretical probability.

• The experimental probability cannot be determined from the data.

A spinner has 5 sections of equal size labeled P, Q, R, S, and T. The arrow of this spinner is spun 15 times and landed 4 times on the section labeled Q.
Which statement best describes the experimental probability and theoretical probability of the arrow landing on the section labeled Q? 

• The experimental probability is 4/15, and the theoretical probability is 1/5.

• The experimental probability is 1/5, and the theoretical probability is 1/5.

• The experimental probability is 4/15, and the theoretical probability is 4/15.

• The experimental probability is 1/5, and the theoretical probability is 4/15.

Several students conducted a simulation where a standard coin was tossed several times and the results were recorded in the table. Which table shows an experimental probability of landing on tails that is closest to the theoretical probability of landing on tails?

• A

• B

• C

• D

When calculating experimental probability, as more trials are conducted, the experimental probability generally gets closer to the theoretical probability. Eventually, the experimental probability will equal theoretical probability.

• True

• False

Ben has a basket of 5 red balls, 3 yellow balls, and 2 green balls. What is the probability that the probability he randomly chooses will be red?

• 1/2

• 1/5

• 1/10

• 5/8

A fair number cube is rolled 60 times. The results of the experiment are shown. For which side of the number cube were the experimental and theoretical probability the closest?

• 2

• 5

• 4

• 3