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If five balanced dice are rolled, what is the probability that the number 1 and the number 4 will appear the same number of times?
I know that n=5, but I can't figure out what other numbers to plug into the equation. 1 can appear once and 4 can appear once, or 1 can appear twice and 4 can appear twice. Anyone know how to do this??? The answer in the book is (2424)/(6^5)
Thanks in advance!!
So this includes the occurance that of the 5 dice.
both #1 and #4 appear once together
both #1 and #4 appear twice together
both #1 and #4 appear not at all
Can you think of any other ways?
No I cannot think of any other ways. And I don't know how to solve for the probability still
The number of ways:
- zero times
- one time
- two times
Now divide by
That makes sense but does not give me the answer in the back of the book of 2424/(6^5)
Never mind, I figured it out. That 3 should be a 2 above
I get the same as your text book: 2424Quote:
Originally Posted by holly123