Question

A soda company decides to reward prizes to celebrate its 50th anniversary. They claim that 25% of all bottles produced this month contain winning prizes under each bottle cap. Mario wants to simulate randomly selecting 20 bottles to determine how many bottles contain a winning prize.
Determine the simulation that can be used to accurately model this situation.
Responses
In a bag, place 25 red chips to represent bottles with prizes and 25 white chips to represent bottles with no prizes. Pull out a chip, record its colour, and put it back. Repeat this 20 times, and count how many are red.
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In a bag, place 25 red chips to represent bottles with prizes and 75 white chips to represent bottles with no prizes. Pull out a chip, record its colour, and put it back. Repeat this 20 times, and count how many are red.
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In a bag, place numbered cards 1 to 26. Assign odd numbers to bottles with prizes and even numbers to bottles without prizes. Pull out a card, record the number, and do not put it back in the bag. Repeat this 20 times, and count how many are odd numbers.


In a bag, place numbered cards 1 to 26. Assign odd numbers to bottles with prizes and even numbers to bottles without prizes. Pull out a car, record the number, and put it back. Repeat this 20 times, and count how many are odd numbers.


Answers

GPT-4o mini
To accurately model the situation where 25% of the soda bottles contain winning prizes, we need to represent the winning and non-winning bottles in accordance with this probability.

Since 25% indicates that for every 100 bottles produced, 25 should contain a prize, we can represent this in a smaller simulation.

The correct response would be:

**In a bag, place 25 red chips to represent bottles with prizes and 75 white chips to represent bottles with no prizes. Pull out a chip, record its colour, and put it back. Repeat this 20 times, and count how many are red.**

This method accurately simulates the randomness of selecting from the population of soda bottles, as it maintains the correct ratio of winning to non-winning bottles (25% winning). Each draw is independent since you are replacing the chip after each selection, which aligns with the concept of sampling with replacement.

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