Probability

The z Score utility model transforms the distribution of pixel values into a standard normal distribution (z-score value). By this normalization the images of different individuals become more comparable.

For more information on z-score, check this article:
http://en.wikipedia.org/wiki/Standard_score

The composite numbers on an ordinary cube are 4 and 6 so the probability of rolling a composite is 2/6 = 1/3

A 6-sided die has 6 possible outcomes. If each of the sides has a different number from 1 to 6, then the probability of getting any one number is 1/6 or 16.67%.

P(A) = 4/52 or 1/13 or 0.077 and P(B) = 13/52 or 1/4 or .25.

You must remove 12 socks to be sure of having a pair of Brown one

There are two main methods: theoretical and empirical.

Theoretical: Is the random variable the sum (or mean) of a large number of imdependent, identically distributed variables? If so, by the Central Limit Theorem the variable in question is approximately normally distributed.

Empirical: there are various goodness-of-fit tests. Two of the better known are the chi-square and the Kolmogorov-Smirnov tests. There are others. These compare the observed values with what might be expected if the distribution were Normal. The greater the discrepancy, the less likely it is that the distribution is Normal, the smaller the discrepancy the more likely that the distribution is Normal.

no, because lets say 1 equals 100% if there is a 1.5(150%) chance of sun today it means its happening no matter what but also 1 means it is guarantee it will be to so really it doesn't make a difference

The answer depends on how many cards are in the hand.

It is 1/18.

The answer depends on what the trial comprises. Since that is not defined, there can be no sensible answer.

Roll of the Dice was created on 1995-08-01.

Since no two notes can sum to another, the answer is 25 - 1 = 31.

There is no secret: the procedures are well studied. However, it is important to know whether the events are independent or dependent.

50% or 3 out of 6.

The probability is 19/25 * 18/24 = 0.57

The probability is 1/4

8 in 12 for the greater than 3 case. (4, 5, 6, 7, 8, 9, 10, 11, 12)

6 in 12 for the even case. (2, 4, 6, 8, 10, 12)

9 in 12 for the combined case. (2, 4, 5, 6, 7, 8, 9, 10, 11, 12)

If the sample size is less then 30 use the T table, if greater then 30 use the Z table.

A Leap year has 366 days. in which you have 52 weeks and 2 days.

the 2 days may be

sun,Mon

mon,Tue

tue,wed

wed,THu,

thu,Fri

FRi,SAT

sat,sun

so you have 7 options among which 2 u can choose..

so the answer is 2/7 for having 53 Sundays. The probability of having 53 Thursdays is also 2/7.

The probability of having either 53 Sundays or 53 Thursdays is 4/7.

The probability of getting a spade out of a full deck is 13/52 = 1/4.

Now, to get exactly one spade you have the following possibilities:

a. Spade first, then others: 13/52*39/51*38/50

b. Other, then Spade, then other: 39/52*13/51*38/50

c. Other, then other, then spade: 39/52*38/51*13/50.

Sum them up, and you get 3*13*39*38/(52*51*50) = 0.4385

To understand this best, please draw a tree.

Standard deviation is the variance from the mean of the data.

13.3%

There are 2 black 2's and 2 red 3's in a standard deck of 52 cards.

Yes.