Knowee
Questions
Features
Study Tools

There is a bag with three balls numbered 1 to 3. There is also a pack of three cards lettered K, Q, and J.As a trial of an experiment, a ball was chosen and a card drawn. The number 1 to 3 of the ball and the letter K, Q, or J of the card drawn were recorded.Here is a summary of the data from 550 trials.Outcome 1K 2K 3K 1Q 2Q 3Q 1J 2J 3JNumber of trials 61 57 64 59 64 57 64 58 66Answer each part.(a) Assuming the ball was chosen and the card was drawn at random, find the theoretical probability of this event: both choosing the 1 or 2 ball and drawing the Q card, in a single trial. Round your answer to the nearest thousandth.(b) Use the data to find the experimental probability of this event: both choosing the 1 or 2 ball and drawing the Q card, in a single trial. Round your answer to the nearest thousandth.(c) Choose the statement that is true.

Question

There is a bag with three balls numbered 1 to 3. There is also a pack of three cards lettered K, Q, and J.As a trial of an experiment, a ball was chosen and a card drawn. The number 1 to 3 of the ball and the letter K, Q, or J of the card drawn were recorded.Here is a summary of the data from 550 trials.Outcome 1K 2K 3K 1Q 2Q 3Q 1J 2J 3JNumber of trials 61 57 64 59 64 57 64 58 66Answer each part.(a) Assuming the ball was chosen and the card was drawn at random, find the theoretical probability of this event: both choosing the 1 or 2 ball and drawing the Q card, in a single trial. Round your answer to the nearest thousandth.(b) Use the data to find the experimental probability of this event: both choosing the 1 or 2 ball and drawing the Q card, in a single trial. Round your answer to the nearest thousandth.(c) Choose the statement that is true.

...expand
🧐 Not the exact question you are looking for?Go ask a question

Solution

(a) The theoretical probability of an event is calculated by dividing the number of ways the event can occur by the total number of outcomes. In this case, the event is choosing either the 1 or 2 ball and drawing the Q card.

There are 3 balls and 3 cards, so there are 3*3 = 9 total outcomes. The event can occur in 2 ways (1Q or 2Q), so the theoretical probability is 2/9 = 0.222. Rounded to the nearest thousandth, this is 0.222.

(b) The experimental probability of an event is calculated by dividing the number of times the event occurred by the total number of trials. In this case, the event occurred 59 times (1Q) + 64 times (2Q) = 123 times. There were 550 trials, so the experimental probability is 123/550 = 0.2236. Rounded to the nearest thousandth, this is 0.224.

(c) The statement that is true is: "The experimental probability is slightly higher than the theoretical probability." This is because the experimental probability (0.224) is slightly higher than the theoretical probability (0.222).

This problem has been solved

Similar Questions

A bag has six balls labeled A, B, C, D, E and F. One ball will be randomly picked, and its letter will be recorded as the outcome. Give all of the outcomes for the event of choosing a letter from C to F. If there is more than one element in the set, separate them with commas.2 points{A, B, C, D}{A, B, C, D, E}{A, B C, D, E, F}{C, D, E, F}

A bag has six balls labeled A, B, C, D, E and F. One ball will be randomly picked, and its letter will be recorded as the outcome. Give the sample space describing all possible outcomes.2 points{A, B, C, D}{A, B, C, D, E}{A, B C, D, E, F}{A, B, C}

A bag two blue balls and three pink balls. A ball is selected from the bag at random but not replaced. A second ball is then drawn, and again, not replaced. Use a tree diagram to determine the sample space. (3 marks)

There is a pack of four cards numbered 1 to 4. There is also a coin with one side marked as heads and the other tails.As a trial of an experiment, a card was drawn and the coin was flipped. The number 1 to 4 of the card and the side H for heads and T for tails of the coin from the flip were recorded.Here is a summary of the data from 550 trials.Outcome 1H 2H 3H 4H 1T 2T 3T 4TNumber of trials 73 73 66 65 69 74 66 64Answer each part.(a) Assuming the card was chosen at random and the coin is fair, find the theoretical probability of this event: both drawing the 2, 3, or 4 card and flipping heads, in a single trial. Round your answer to the nearest thousandth.(b) Use the data to find the experimental probability of this event: both drawing the 2, 3, or 4 card and flipping heads, in a single trial. Round your answer to the nearest thousandth.(c) Choose the statement that is true.With a large number of trials, there must be no difference between the experimental and theoretical probabilities.With a large number of trials, there might be a difference between the experimental and theoretical probabilities, but the difference should be small.With a large number of trials, there must be a large difference between the experimental and theoretical probabilities.

ProbabilityA bag contains 4 white, 5 red and 6 blue balls. Three balls are drawn at random from the bag. The probability that all of them are red, is:Options1/311/342/911/92

1/2

Upgrade your grade with Knowee

Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.