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Two unbiased dice are thrown Find the probability that neither double nor a total of 10 will appear?
Wiki User
∙ 14y ago
The sample space is 62 or 36. The easier way to do this problem is to find the probability of doubles or 10 and subtract from 1. The probability of a double is 6/36 (1,1; 2,2; 3,3; 4,4; 5,5; 6,6). There are 3 ways to get a 10; 4,6; 6,4; & 5,5. We already counted 5,5 in the double so there are 2/36 we add to the 6/36 to obtain 8/36. So, 1-8/36 = 28/36 or 7/9 or 0.7778 probability that neither double nor a total of 10 will appear.
Wiki User
∙ 14y ago
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Two events A and B with probability 0.5 and 0.7 respectively have joint probability of 0.4 The probability that neither A nor B happens is?
Let me denote -A as the event that A does not happen. So we want Pr[-(A and B)] Now, the event that neither A nor B occurs is the opposite of either A occurring, or B occurring or both occurring. So Pr[-(A and B)] = 1 - Pr(A or B)= 1 - [Pr(A) + Pr(B) - Pr(A and B)] (since A+B is double counted)= 1 - (0.5 + 0.7 - 0.4)= 1 - 0.8= 0.2
Which is a better lifeline 50 50 or double dip?
Both are equivalent! * Probability of using 50-50 and getting the right answer: 1/2 * Probability of using double dip and getting the right answer: = Probability that either first or the second guess is correct P(First guess is correct) = 1/4 + P(First guess in wrong and second guess is correct) = 3/4 * 1/3 = 1/4 = 1/2
There are 36 different outcomes possible when you toss two dice. What is the probability that the two dice will show the same number?
There are 6 different doubles that can be rolled. (They are 1 and 1, 2 and 2, etc.) You have a 6/36 chance of rolling doubles. The fraction 6/36 simplifies (reduces) to 1/6. Your 1 in 6 chance of rolling doubles now needs to be converted to probability. Probability speaks to the "chance" that something will occur. It is expressed as a "pure" number, and the range of probability is from 0 to 1. The probability 0 means that it cannot occur, and the probability 1 means that it will or must occur. Everything else falls in between. If you have a 1 in 6 chance of rolling doubles that translates into a 1 divided by 6 probability, or a 0.1666666... probability that a double will come up.
If you draw a card from a standard deck of cards what is the probability of drawing a heart or an Ace?
The chance of picking a heart is 1/4 as there are four suits. The chance of picking an ace is 1/13, as there are 4 aces in a deck of 52. If I want the probability of drawing a heart of an ace, I can add these probabilities together, but I have double counted on possibility, the ace of hearts. So: Probability = 4/52 + 13/52 - 1/52 = 16/52 or 4/13 Probability = 0.308 expressed as a fraction.
What is the probability of rolling a pair of six-sided dice 25 times and getting double sixes once Give your answer as a decimal rounded to the nearest hundredth?
25.00
In a roll of the dice for 24 consecutive times which has the higher probability of happening a. double six to appear or b. a double six will not appear?
The double six probably will not appear. There's only one way to make a 12. The correct odds are 30 to one. That means they might appear in 30 rolls of the dice. But, the dice don't have eyes and they don't know what number was rolled previously. The numbers are random and double six could appear more often.
What are 3 probabilities of getting heads when you flip a quarter?
There is the probability of 1/2 if it is a fair coin. There is the probability of 1 if it is a double-headed coin. There is the probability of 0 if it is a double-tailed coin.
Two events A and B with probability 0.5 and 0.7 respectively have joint probability of 0.4 The probability that neither A nor B happens is?
Let me denote -A as the event that A does not happen. So we want Pr[-(A and B)] Now, the event that neither A nor B occurs is the opposite of either A occurring, or B occurring or both occurring. So Pr[-(A and B)] = 1 - Pr(A or B)= 1 - [Pr(A) + Pr(B) - Pr(A and B)] (since A+B is double counted)= 1 - (0.5 + 0.7 - 0.4)= 1 - 0.8= 0.2
What is the probability that you will get a double if you have a two number cubes?
It is 1/6.
If two fair dices are thrown what is the probability of a double 6?
1/36
Having children the first year of marriage will cause the probability of divorce to double or triple?
No.
How many times would you have to roll a pair of dice to make double sixs a 50 percent probability?
If you roll a pair of fair dice 25 times, the probability of rolling a double six at least once is just above 50% (50.55%).
Is a flute a double reed or a single reed?
a Flute does not have a reed so it's neither a single or double reed instrument.
When will palmer appear in Pokemon is it single or double battle?
Single.
Is this sentence correct neither she nor he scheduled her and his team for the gym?
No it is a double negative
Are there any words that have a double?
appear pepper cropper appeal appeasement
When did the first red double-decker buses appear in the streets of London?
1956
