Statistics

When there are two or more events that are independent then counting is usually simpler.

6

Σn

2

What is n??

Please answer

No, the lists would be too large and few people would wish to get one anyway.

There are 2000 pounds in one ton (short ton). Therefore, 4900 pounds is equal to 4900/2000 = 2.45 tons.

Yes

I think this is an important question. There are a number of similar words: estimate, estimating, estimator, and estimand.

An estimate is a non-exact result. If I calculate a value from a sample of data, I can state that the value is an estimate of a larger set of uncollected data (a population).

For example, if I take a sample of 20 numbers, and calculate the average, the number is exact. However, this average may be close to the mean of population. The average in mathematics is called an estimator of the population's mean.

I've included a related link. Don't worry if you don't understand a lot of it. It shows a lot of different types of estimators exists, and the subject is quite mathematical.

Estimating is the process of making an estimate.

An estimand is the particular value or attribute in the population which we want to know as well as we can. It is the objective of the study. I want to know how many years the average cat lives ("the estimand"). Obviously, I will never know this precisely, but I collect data, and make estimates of the estimand.

See related links.

The probability of picking a 15 or a 16 from the random set [1-20] is 2 in 20, or 1 in 10, or 0.1.

This only works for y=mx, not y=mx+c.

theta = tan(m)

eg y=x theta = tan(1)

.: theta = 45

A circle graph

Imposing standard costs without communicating in an honest, candid manner will undermine much of the perceived value of such costing.

That's 106.7 inches - which is 8ft 10.7in

Given any number it is easy to find a rule based on a polynomial of order 5+k such that the first five numbers are as listed in the question and the next k are the given "next" numbers.

However, use the rule

Un = (-6n4 + 83n3 - 411n2 + 874n - 468)/6

Accordingly, the next three numbers are 22, -71, -310

your set of even number x = {2,4,6}, which tells you that 3 out the 6 sides are even. Your probability is 3/6 = 1/2

If it's a fair coin, the probability is 0.5 * 0.5 * 0.5 = 12.5%.

It is a result of the Central Limit Theorem.

No.

Earth

LINE GRAPHS - is a common statistical graphs for expressing trends (that is, decreases / increases and how fast / slow) over a specified period of time.

8 in 52

First event is to roll a 3 or 6 on a die, which gives you a probability of 2 out of 6.

Second event is tossing a heads on a coin, so a probability of 1 out of 2.

Since both chances are not related, you can multiply both chances:

2/6 times 1/2 = 1/6 = 0,166666...

It is actually very simple, just take 10 to the square root of four.

10^4

There are 12,500 of them and I am not going to list them. One of them is 200000.

Not very

2 4 4 6 8

Plain and simply YES