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A box contains 24 yellow, 33 green and 37 red jelly beans. If 11 jelly beans are selected at random, what is?

"what is the probability that: a) 2 are yellow? b) 2 are yellow and 8 are green? c) At least one is yellow?"

Answers (4)

seymour 06-02-2013
"a) 11 choose 2 b) 11 choose 2 * 11 choose 8 * 8 choose 2 c) 1 - 11 choose 0"
mobita 28-05-2013
    " The body weight of your infant is usually a variant X containing the standard Gaussian distribution with all the mean weight can be three kg. The normal deviation azines = nought.only two kilo. This minimal weight involving baby will be just one.5 various kilogram.           "
dinday 07-06-2013
    Some sort of case contains ten wits: 3 violet, one white-colored, 2 environmentally friendly, and iv crimson. Just one marble is actually removed from the bag (without looking). It is possible to chances the marbled will be glowing blue?        
aleex 10-06-2013
    Brian carries a handbag involving jelly coffee beans made up of 12 environment friendly in addition to eighteen lime. They drags out and about 1 jelly egg (with no searching) along with places it within a pot. He then pulls out yet another jelly egg through the handbag (with no shopping). What is the probability he will have got two eco-friendly gelatin pinto and black beans?        

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