Question

If 30% of the people who shop at a local grocery store buy chocolate ice-cream, what is the probability that it will take at least 5 customers to find one who buys chocolate ice-cream?
Which simulation design has an appropriate device and a correct trial for this problem?












A) Roll a fair die where 1,2, and 3 are buying chocolate ice-cream and the other numbers are not buying chocolate-ice cream. Roll the die until you get a 1,2,3. Record the number of rolls it took you.


B) Using a random digits table select one digit numbers where 0-2 is a customer who buys chocolate ice cream 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.


C) Using a random digits table select one digit numbers where 0-3 is a customer who buys chocolate ice cream and 4-9 is a customer who does not. Keep selecting one digit numbers until you get a 0-2. Record the number of digits selected.


D) Spin a spinner that is split up into 5 sections, where 1 section is a success of buying chocolate ice-cream and the other four sections are not buying chocolate ice-cream. Keep spinning until you get someone that buys chocolate ice-cream. Record the number of spins it took you

Answer 1

B because it is the best representation of 30%

Answer 2

Answer:

It is B

Step-by-step explanation:

It shows it i also took on usa test prep