A random sample was taken to determine whether students from a certain classroom prefer to shop at Store A, Store B, or Store C. Which of the following would represent a random sample?

1. selecting all the students that have a last name that begins with R
2. selecting all the girls
3. putting all the names in a hat and selecting six students
4. putting all the names in alphabetical order and selecting every fourth student

0.16 or 16%

step-by-step explanation:

lets take a coin for example.

if you toss it twice, it has a 1/4 chance of landing on heads both times because 1/2 * 1/2 is 1/4.

with the cards, the chance of picking dog is 0.4. having two people pick one is like picking a card twice in a row. so 0.4 * 0.4 is 0.16, or 16%

if the probability is 1/12, 75 people will receive a $25 gift card

step-by-step explanation:

step-by-step explanation: