Statistics

n/(1/a1+1/a2+....+1/an)

You have a 3.125% chance of not rolling an even number, because each time you roll a die you have a 50% chance of not rolling an even number, but each additional time you roll a die your chances of not rolling an even number the formula changes from 3/6 to 3/12 because the possibilities double but your chances of not rolling an even remain the same so eventually we end up with 3/96 because of rolling the die 6 times.

There are 0.0003048 kilometres in one foot. Therefore, rounded to two decimal places, 11 kilometres is equal to 11/0.0003048 = 36089.24 feet.

Along with an associated 'degrees of freedom' these values can be used to give the probability of deviation from some model under the null hypothesis. For example, suppose the chi-square value proved to be 13.5 on df=6. Various sources give the value of the chi-square distribution function for this particular outcome. Let me use the Python (language) library scipy.

>>> chi2.cdf(13.5,6)

0.96425158157771951

This indicates that one would expect to see a value this large only about 0.036 or 3.6% of the time, given the truth of the null hypothesis. One would have some grounds for rejecting that hypothesis.

Mode.

9...

From a standard deck of 52 cards, the chance of not drawing a king on one pick is 48 of 52, or 12 out of 13 (about 92%).

japan

An approximate value in terms of Money that is guesstimated.

Since it must be a 5 digit number, range is

the numbers from 20000 to 55555

we will use multiplication rule to figure this out too.

If a number is divible by two, its last(ones place) digit is even. If it

is divisible by 5 its last(ones place) digit is zero or 5.

We don't give a rat's derriere what the other digits are

(for divisibility by two or five)

The number of ways to choose the ten thousands place

digit is 4

the number of ways to choose the thousands place digit

is 5

the number of ways to choose the hundreds place digit

is 5

the number of ways to choose the tens place digit

is 5

The number of ways to choose the ones place digit is

FOUR, since it must be 0,2,4,5 and not 3

use multiplication rule and solution is

4 x 5 x 5 x 5 x 4 = 2000

The degrees of freedom for any contingency table can be calculated simply by the formula (r-1)x(c-1) where r= the number of rows and c= the number of columns. Thus for a contingency table with four rows and four columns the degrees of freedom are 3x3 = 9.

This would mean that on a graph, a change of 100 on the x axis would be accompanied by a change of 1 on the y axis.

Variance

According to Wikipedia, "Mergo is a commune (municipality) in the Province of Ancona in the Italian region Marche, located about 40 km southwest of Ancona."

To find percentage accuracy:

(x-y)/x Where x > y This will show as a % how far y is from x.

I believe it means "Dragon Born".

2520

Explanation: 2 X 2 X 2 X 3 X 3 X 5 X 7

Three 2's are needed to cover the 8, which also covers the 4.

Two 3's are needed to cover the 9.

5 and 7 are prime numbers, so they are needed.

6 is covered by a 2 and a 3.

10 is covered by 2 and 5.

12 is covered by two 2's and a 3.

The mean of a set of numbers is defined to be the quotient of the sum of all the numbers divided by how many numbers are summed. In this instance, (13 + 2 + 15 + 10 + 5)/5 = 9.

There are 72 permutations of two dice and one coin.

4/52 or 1/13.

is the dice weighed, if not, the probable is even for each number, if so, the number opposite of the weight is more probably going to land

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When two dice are rolled, 7 is the most probable total. If you count each die separately, there are 6 ways to roll a total of 7:

1 + 6;

2 + 5;

3 + 4;

4 + 3;

5 + 2;

6 + 1.

All the other totals have fewer possible ways to come up. For example, there is only one way to roll a 2 or a 12, two ways to roll a 3 or 11.

YES!

The head of a penny is obviously the queens head, and the tail is that thing on the other side of the penny.

You find the mean of them ( add them together and divide by 2 .)