Probabilities Like-Questions?

1.) Kirsten had 2 shirts, 3 blouses, and 4 sweaters. How many different outfits can she make of a shirt, a blouse, and a sweater?





2.) CARDS ---- A--B--C--A--B--A





Pick a card at random, without replacing it. PIck a second card. What is the probabilty of picking "A" on the first pick and without replacing it picking a second "A".








P(A, A) =





3.) The following chart shows the number of students' birthdays per month for one class. A female is chosen at random. What is the probability that her birthday will be in the first 6 months of the year?





Month--- 1 -2- 3- 4- 5- 6 -7- 8 -9 -10- 11- 12


Boy------ 0- 1- 2 -0 -4 -2 -1 -0- 0 - 2 - 1 - 1


Girl------- 1- 2 -0- 3- 2- 2- 0- 1- 2- 1 - 2- 0

Probabilities Like-Questions?
q1


2*3*4 = 24





q2


P = 3C2 / 6C2


= 3 / 15


= 0.2





q3


P = (1+2+0+3+2+2) / (1+2+0+3+2+2+0+1+2+1+2+0)


= 10 / 16


= 5/8


= 0.625
Reply:y don't u tell us the answer. bob might want to know y he's wrong. Report It

Reply:1. 24 combinations


2. 1/5


3. 5/8

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