Posts Tagged ‘probability’

If a red dice and green dice are rolled, the probability that the sum is seven or eleven is?

A) 1/2 B) 2/9 C) 2/11 D) 1/4 Thank you! Chosen Answer: The colors don’t matter. There are 36 possible combinations for two dice. The combinations that produce a sum of 7 are: 1 and 6 2 and 5 3 and 4 6 and 1 5 and 2 4 and 3 For an 11 the [...]

Eleven marbles — 5 green, 3 brown, and 3 pink — are evenly distributed in a sack. The marbles are extracted on?

Eleven marbles — 5 green, 3 brown, and 3 pink — are evenly distributed in a sack. The marbles are extracted one at a time, without replacement. A green marble is chosen on the first trial, and a brown marble is chosen on the second trial. The probability of choosing a pink marble on the [...]

2 Dice Probability. Sum of two, nine, and eleven.?

if a pair of dice is rolled one time. probability outcome of: 2 is 0.0278 9 is 0.1111 11 is 0.0556 but how can i get the probability if the sum of the 2 dice will be 2, 9, and 11? should i add it up or get the average? Chosen Answer: Yep, add all [...]

A box contains eleven balls, numbered 1,2,3….10,11,11. if 6 balls are drawn simultaneously at random, what is?

A box contains eleven balls, numbered 1,2,3….10,11,11. if 6 balls are drawn simultaneously at random, what is the probability that the sum of the numbers on the balls drawn is odd? Chosen Answer: “eleven balls numbered 1,2,3 … 10, 11, 11″ either the numbers are 1 – 11 (no second 11) or some other number [...]