Questions on Review for Exam 3

You can ask questions about our review for exam 3 by posting them here!

Problem 2: Is the continuous distribution of X a uniform distribution of X?

Good question! And yes - that is how I intended it.

I had written "X has a continuous uniform distribution" and attempted to abbreviate it unsuccessfully.

I do have a non-uniform version of this problem on our in class practice sheet.

Here's number 5:

I’ve got a coin that comes up heads 80% of the time. Suppose I flip that coin 25 times. What’s the probability that I get 20 heads?
You should express your answer in terms of the binomial distribution.

Are you looking for a numeric answer, or an equation. Because I got to the equation, but I'm not sure how you'd want us to solve this without a calculator

Your answer looks exactly correct. That is exactly what I meant when I wrote: "You should express your answer in terms of the binomial distribution."

To be clear, this is a numeric expression, just as 2+3 is a numeric expression. It is not an equation; there's not even an equals sign.