HELP in math 10 points here?

Use the word TRAIN. Find the probability of


each event when a letter is drawn at random.





8. selecting an R, not replacing it, and then


selecting an N





Simplify each expression.





10. 3P2





11. 5C2





Find the number of three-letter permutations


you can make using each group of letters.





13. L,U, N, C,H





A student has 4 blue shirts and 2 white shirts.


He selects one shirt at random.Without


replacing the shirt, he selects a second shirt at


random. Find each probability.





16. P(blue, then blue)





You roll a pair of number cubes once.What


is the probability of rolling doubles?


a. Find the sample space.Then find the


theoretical probability.


b. Use a simulation to find the


experimental probability.


c. For parts (a) and (b),


how close should you expect your


answers to be? Explain.

HELP in math 10 points here?
8. R : 1/5 ... then N : 1/4


thus the probability is the product : 1/20





10. nPr = n! / (n-r)! .. . .3! / 1! = 6


11. nCr = n! / r! (n-r)! ... 5! / 2! 3! = 5*4/1*2 = 10


.. . .. .





13. 5P3





16. (4/6)(3/5)

flower girl