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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

What does a P-value of 0.05 mean with respect to the probability of something happening out of 100 chances?

It means that there are at most five times in which the sought event occurs.

It means that there are at most five times in which the sought event occurs.

It means that there are at most five times in which the sought event occurs.

It means that there are at most five times in which the sought event occurs.

What does stringent mean?

Stringent means tightly controlled, detailed, harsh. It often carries a connotation of suspicion, particularly when used to describe looking into a person's background.

How many permutations are there of the latters of the word numbers?

There are 7 factorial, or 5040 permutations of the letters in the word NUMBERS.

When was the spade invented?

When someone wanted to dig into hard earth.

What is the probability of obtaining exactly four tails in five flips of a coin given that at least three are tails?

The probability is that the remaining two outcomes are 1 H and 1 T. The probability of that is 2/4 or 50%

The probability is that the remaining two outcomes are 1 H and 1 T. The probability of that is 2/4 or 50%

The probability is that the remaining two outcomes are 1 H and 1 T. The probability of that is 2/4 or 50%

The probability is that the remaining two outcomes are 1 H and 1 T. The probability of that is 2/4 or 50%

Why the normal distribution curve have extremes is opened?

Because the domain of the normal distribution is infinite - in both directions.

How many ways arrange the word statistics?

The letters of the word statistics can be permuted in 10!/(3!*3!*2!) = 3,628,800/72 = 50,400 ways.

If there are 117 blue marbles229 red marbles and 104 yellow marbleswhat percent are blue?

26 percent because

117

229

+104

_____

450 ÷ 45 =10 x 10 =100

117 ÷ 45 =2.6 x 10 = 26

26

is = to 26%

100

What is the probability that on two consecutive rolls of a die first an odd number then an even number will come up?

Alright these are two different independent trials. Therefore u take the probabilityof the first times the probability of the second so 3/6 times 3/6 and u get 9/36=1/4=.25=25%

I rolled the dice 120 times what's the probability of getting a 6?

If you rolled a die 120 times, the probability of getting a 6 is one in six. It does not matter how many times you roll the die - the probability is still one in six - except that the long term mean will approach the theoretical value of 0.166... as the number of trials increases.

What is the probability of scoring a four on a die?

If you throw a fair die one time, the chance of a four is 1/6 or about .1667

What is the probability of drawing an Ace or a Jack from a deck of 52 cards?

approx 15 %

Reason: There are 2 cards in each suit of 13 that are either an Ace or a Jack.

So there is a 2 out of 13 (or 8 out of 52) chance, which is 15.38% chance.

IN FRACTION AND USING PERMUTATIONS AND COMBINATIONS

total number of cases : 52C1

favorable cases : in cards there are 4 aces and 4 jacks, therefore 4+4 = 8

P (of drawing an ace or a jack) = 8/52

= 2/13

odds against this question is : 2/(13-2)

= 2/11 [ANS.]

What is the median of 2 3 5 7 11?

The median of 2 3 5 7 11 is 5, the central number.

What is probability mean?

probably means that something or which is not sure .

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