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Question
If 20% of the people who shop at a local grocery store buy apples, what is the probability that it will take no more than 5 customers to find one who buys apples?
Which simulation design has an appropriate device and a correct trial for this problem?
Responses
A Using a random digits table select one digit numbers where 0-1 is a customer who buys apples and 2-9 is a customer who does not. Keep selecting one digit numbers until you get a 0 or 1. Record the number of digits selected.Using a random digits table select one digit numbers where 0-1 is a customer who buys apples and 2-9 is a customer who does not. Keep selecting one digit numbers until you get a 0 or 1. Record the number of digits selected.
B Spin a spinner that is split up into 5 sections, where 2 sections are a success of buying apples and the other three sections are not buying apples. Keep spinning until you get someone that buys apples. Record the number of spins it took you.Spin a spinner that is split up into 5 sections, where 2 sections are a success of buying apples and the other three sections are not buying apples. Keep spinning until you get someone that buys apples. Record the number of spins it took you.
C Using a random digits table select one digit numbers where 0-2 is a customer who buys apples and 3-9 is a customer who does not. Keep selecting one digit numbers until you get a 0-2. Record the number of digits selected.Using a random digits table select one digit numbers where 0-2 is a customer who buys apples and 3-9 is a customer who does not. Keep selecting one digit numbers until you get a 0-2. Record the number of digits selected.
D Roll a fair die where 1-2 are buying apples and 3-6 are not buying apples. Roll the die until you get a 1 or 2. Record the number of rolls it took you.Roll a fair die where 1-2 are buying apples and 3-6 are not buying apples. Roll the die until you get a 1 or 2. Record the number of rolls it took you.