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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

Application set theory on business section?

Set theory does have many practical business applications. Some of these include how the Turing machine is used in computer science, and the theory of crisis of foundations in math.

What is convergence of probability?

"Convergence in probability" is a technical term in relation to a series of random variables. Not clear whether this was your question though, I suggest providing more context.

What is the probability of getting exactly seven tails if you flip a coin eight times?

The probability of getting exactly seven tails if you flip a coin eight times is:

P(7T1H) = 8∙(1/2)8 =0.03125 ≈ 3.1%

What is the standard deviation of a variance of 846?

If the variance is 846, then the standard deviation is 29.1, the square root of 846.

What is the probability that the colors red blue pink appear in the first second third tosses if 3 faces of a die are red blue and pink and it is thrown thrice?

The answer depends on how many faces the die has: a minimum of 4 and no maximum.

If you assume that it is a regular cubic die and that the other three faces are not red, blue nor pink, then the probability is 1/216.

Two possible outcomes of disequilibrium Economic?

Market disequilibrium is market conditions yielding surplus or shortage: a market state in which the forces of demand and supply are not balanced, leading to price fluctuations that reflect a shortage or a surplus of a product or commodity.

What increases the likelihood of a loss occurring?

Mrs. Ward is afraid she is going to be killed in a car accident. So she has chosen not to ride in cars. How does she handle her risk?

How do you assess if data is normally distributed?

The easiest way to tell if data is normally distributed is to plot the data.

line plot apex

What is the formula for a random variable?

The formula, if any, depends on the probability distribution function for the variable. In the case of a discrete variable, X, this defines the probability that X = x. For a continuous variable, the probability density function is a continuous function, f(x), such that Pr(a < X < b) is the area under the function f, between a and b (or the definite integral or f, with respect to x, between a and b.

If you Have a deck of 52 cards What is the probability that first 4 are spades?

The probability of drawing 4 spades from a deck of 52 cards is 11 in 4165.

The probability of the first spade is 13 in 52, or 1 in 4. The second spade is 12 in 51, or 4 in 17. The third spade is 11 in 50. The fourth spade is 10 in 49. Multiply these four probabilities together and you get 440 in 166600, or 11 in 4165.

One card is drawn from a standard deck of cards The probability of drawing a queen or any red card equals?

There are 2 black queens and 26 red cards in a standard deck. Therefore the probability is 28/52 = 7/13 = 53.85%

What is the probability of rolling either a 6 or 4 on one roll of a dice?

The probability of rolling either a 6 or 4 on one roll of a dice is two thirds (one sixth plus one sixth because both four and six have a probability of one sixth.

Is rolling an even number on a number cube an event or outcome?

Before you roll the cube it is an even. Afterwards, it is an outcome.

What function of course focusing mechanism?

The coarse focusing mechanism is the rough focus knob on the microscope. It is used to move the objective lenses toward or away from the specimen.