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Lotto In the United Kingdom’s Lotto game, a player picks six numbers from 1 to 49 for each ticket. Rosemary bought one ticket for herself and one for each of her four adult children. She had the lottery computer randomly select the six numbers on each ticket. When the six winning numbers were drawn, Rosemary was surprised to find that none of these numbers appeared on any of the five Lotto tickets she had bought. Should she be? Design and carry

out a simulation to answer this question. Follow the four-step process.

Short Answer

Expert verified

As a consequence, 4 or all 5 simulations share a common number.

Step by step solution

01

Step 1. Given Information   

Use numbers with two digits. The numerals 00 through 02 can be used to represent bingo. The numbers between 03 and 99 should be used to signal nobingo. Count the required number of 2-digit numbers until bingo is obtained.

02

Step 2. Concept Used  

We can't foresee the outcomes of a chance process, yet they have a regular distribution over a large number of repetitions. According to the law of large numbers, the fraction of times a specific event occurs in numerous repetitions approaches a single number. The likelihood of a chance outcome is its long-run relative frequency. A probability is a number between 0 (never happens) and 1 (happens frequently) (always occurs).

03

Step 3. Explanation    

Use two-digit numbers instead of three-digit numbers. Let the numbers 01to 449represent the ticket's matching number. Ignore the numerals 50through 99, as well as the number 00. Six numbers, ranging from 01to 49, are drawn at random, with no repeats. Repeat this simulation six times and count how many simulations (except the first) have the same number as the first. You'll almost certainly get a result that says 4 or 5 simulations all have the same number.

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Most popular questions from this chapter

Is this valid? Determine whether each of the following simulation designs is valid. Justify your answer.

(a) According to a recent survey, 50% of people aged 13 and older in the United States are addicted to email. To simulate choosing a random sample of

20people in this population and seeing how many of them are addicted to email, use a deck of cards. Shuffle the deck well, and then draw one card at a

time. A red card means that person is addicted to email; a black card means he isn’t. Continue until you have drawn 20cards (without replacement) for the sample.

(b) A tennis player gets 95%of his second serves in play during practice (that is, the ball doesn’t go out of bounds). To simulate the player hitting 5second serves, look at pairs of digits going across a row in Table D. If the number is between 00and 94, the service is in; numbers between 95and 99indicate that the service is out.

Construct a tree diagram to represent this situation.

Keep on tossing The figure below shows the results of two different sets of 5000coin tosses. Explain what this graph says about chance behavior in the short run and the long run.

The birthday problem What’s the probability that in a randomly selected group of30 unrelated people, at least two have the same birthday? Let’s make two

assumptions to simplify the problem. First, we’ll ignore the possibility of a February 29 birthday. Second, we assume that a randomly chosen person is equally likely to be born on each of the remaining 365 days of the year.

(a) How would you use random digits to imitate one repetition of the process? What variable would you measure?

(b) Use technology to perform 5 repetitions. Record the outcome of each repetition.

(c) Would you be surprised to learn that the theoretical probability is 0.71? Why or why not?

You want to estimate the probability that the player makes 5or more of 10shots. You simulate 10 shots 25 times and get the following numbers of hits:

5754153434534463417455657 What is your estimate of the probability?

(a) 5/25, or 0.20 (d) 16/25, or 0.64

(b) 11/25, or 0.44 (e) 19/25, or 0.76

(c) 12/25, or 0.48

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