Week 4

Question 1

In which kind of distribution is the mean equal to the median (symmetric)?

Answer 1

normal distribution

Question 2

What helps us describe how well a sample mean estimates the population mean?

Answer 2

standard error of the mean (SEM)

Question 3

Can we apply the central limit theorem to any population?

Answer 3

yes lol

Question 4

What are the three aspects of the law of large numbers?

Answer 4

1. close to population mean
2. normal distribution
3. the larger the sample, the closer to the population mean

Question 5

What is the rule of thumb regarding normal distributions?

Answer 5

68% will fall within one standard deviation, 95% will fall within two standard deviations

Question 6

What is a probability model for a new outcome?

Answer 6

Binomial distributions