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Probability

The probability of a certain event is a number expressing the likelihood that a specific event will occur, expressed as the ratio of the number of actual occurrences to the number of possible occurrences. In mathematics, it is a measure of how often an event will happen and is the basis of statistics.

14,643 Questions

How can you get a male child?

...

Well, when a man and a woman love each other very much, they get certain urges...

Is you question can you influence the gender of your baby?

If so, some people believe you can increase your chances of having a boy by having sex at certain points in the ovulation cycle.

What is 1standard deviation below 100?

The standard deviation varies from one data set to another. Indeed, 100 may not even be anywhere near the range of the dataset.

What is the probability of selecting a black card or a card less than 9 from a deck of 52 cards?

The answer i got was 1 3/26

The cards are red or black, so the chance of getting black is 1/2

The cards less than nine is 1-8. There are 4 of each value, so 8 cards times 4 suits equals 32. The chance of getting a card less than nine is 32/52, or 8/13

1/2 plus 8/13 is 13/26 plus 16/ 26, which equals 29/26, or 1 3/26

That is how i solved it.Type your answer here...

There are 3 red 2 blue and 4 green marbles in a bagwhat is the probrobility of getting a red then a green without replacing the first one picked?

Your sample space --> 3 + 2 + 4 = 9

For the first draw, P(Red) = 3/9


For the subsequent draw, your sample space is reduced by 1.


So P(Green|Red) is 4/8.


To get the total of this event happening, you times 3/9 with 4/8 which is 1/6.

If two cards are drawn without replacement from an ordinary well-shuffled deck of 52 playing cards what is the probability that they will be in the same suit?

The odds can simply be calculated by dividing the total number of desired outcomes by the total number of possible outcomes. After you pick the first card (no matter what suit), the odds of picking a second card of the same suit are 12/51 -- there are 12 cards remaining of the suit that was initially picked (desired outcomes) and 51 cards in the remaining deck (possible outcomes). As a percent, this equals 23.529%

What is the probability of rolling a sum of 7 decimal?

Not quite sure how a decimal enters into the question. Please edit the question to include more context or relevant information.

When did Odd Isaachsen Willoch die?

Odd Isaachsen Willoch died on 1940-04-09.

What is the probability of picking a number 6 from numbers one to 15 in 99 trials?

Prob(Pick 6 from 1-15 in 99 trials)

= 1 - Prob(Don't pick 6 from 1-15 in 99 trials)

= 1 - (14/15)99

= 1 - (0.933...)99

= 1 - 0.00108 approx

= 0.9989

What is another name for Experimental Probability?

Another name for experimental probability is empirical probability. This is the ratio of the number of outcomes in which a specified event occurs to the total number of trials.

How many times do you have to roll two dice to get a statistical bell-curve?

There is no answer to this question. The greater the number of rolls, the closer you get to the bell-curve. But you will never ever actually reach the bell-curve.