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What is the probability of drawing a 6 and a spade?
Probability of drawing a spade is 13/52. Probability of also drawing a 6 is 3/39. Therefore it would be 13/52 x 3/39= .0192
What are three events in which the probability is 1?
If an event has a probability of 1, it will happen no matter what. The probability of rolling a number x, such that 1 ≤ x ≤ 6, on a standard 6 sided die, is 1. The probability of the temperature being > absolute 0, is 1. With a standard 52 card deck of card, P(drawing a spade or drawing a club or drawing a heard or drawing a diamond) is 1. In these situations, there is no variable that can affect the event. It will happen no matter what.
What are the odds against drawing a spade greater than 3 and less than 9?
The probability of drawing a 4, 5, 6, 7, or 8 of spades is 5 in 52. The probability of not drawing a 4, 5, 6, 7, or 8 of spades, therefore, is (52-5) in 52, or 47 in 52, or about 0.9038.
A bag contains 2 yellow 12 red and 6 green marbles What is the probability of selecting a red marble replacing it then selecting another red marble?
The probability of drawing two reds, with replacement, is the same as the probability of drawing a red, times itself. So: P(drawing two reds) = P(drawing a red)2 = (12/(2 + 12 + 6))2 = (12/20)2 = (3/5)2 = 9/25
What is the probability of drawing a heart and rolling a 4?
The probability of drawing a heart in a single random draw from a normal deck of playing cards and rolling a 4 on a fair number cube is: 1/4*1/6 = 1/24
