Answer:
The possible ways Daniel line up his rock collection are {2, 3, 6 and 9}.
Answer:
Hello! The answer would be
=
4
Step-by-step explanation:
The difference is 6 because it is what we get when we subtract 8 and 2.
Final answer: 6
The probability to choose letter n is

. After drawing letter n there left 25 letters and the probability to choose the letter w is

. After drawing two letters n and w there left 24 letters and then the probability to choose letter b is

. After drawing three letters n, w and b there left 23 letters, so the probability to choose letter t is

.
Using the product rule for probabilities, you can obtain that

.