Question

Suppose the probability of selecting a supermarket shopper who prefers plastic bags instead of paper bags is 50%. Out of 150 shoppers, how many can you expect will prefer plastic bags?(1 point)

Answer 1

[AI-generated answer — Bot GPT 3.5]

You can expect 75 shoppers out of 150 to prefer plastic bags, since the probability of selecting a shopper who prefers plastic bags is 50%.

Answer 2

A single coin is tossed 300 times. Heads were observed 180 times. What is the long-run relative frequency of tails? Express the answer in decimal form.(1 point)

Answer 3

[AI-generated answer — Bot GPT 3.5]

The total number of tosses is 300, and the number of heads observed is 180. To find the number of tails observed, we can subtract the number of heads from the total number of tosses:

Number of tails = Total number of tosses - Number of heads
Number of tails = 300 - 180
Number of tails = 120

The long-run relative frequency of tails is calculated by dividing the number of tails observed by the total number of tosses:

Relative frequency of tails = Number of tails / Total number of tosses
Relative frequency of tails = 120 / 300
Relative frequency of tails = 0.4

Therefore, the long-run relative frequency of tails is 0.4.