We throw the dice 5 times.

[dazhebhs]

We throw the dice 5 times.
A- The probability that the number 4 is seen exactly three times.
B- The probability that the number 4 is seen at most twice.

 

[stapel]

We throw the dice 5 times.
A- The probability that the number 4 is seen exactly three times.
B- The probability that the number 4 is seen at most twice.

What are your thoughts? What have you tried? How far have you gotten? Where are you stuck?

Please be complete. Thank you!

Eliz.

 

[R.M.]

Are the dice 6-sided? 8-sided? 10-sided?
For A: what is the probability of one 4? Two 4's? See a pattern?
For B: what is the probability of 4 never showing up? What is the probability of 4 showing up once? What should you do with both of those results?

 

[Harry_the_cat]

Do you know anything about binomial distributions?