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Statistics

Statistics deals with collecting, organizing, and interpreting numerical data. An important aspect of statistics is the analysis of population characteristics inferred from sampling.

36,755 Questions

What kind of job do a mathematician do?

Mathematicians delve into the most complex and difficult logic and math problems. They also help the financial, biotech, energy and engineering industries and governement agencies beside education jobs where they occupy chairs as professors.

In academy, a B.A. or B.S. in Mathematics cannot pursue professions outright since he still needs some kind of specialization which is mastered after an extended period of post-graduation studies.

What does cardinal numbers mean in math terms?

It is the value of integers, rather than their position.

For example, the first three cardinal numbers are: ONE, TWO and THREE.

Their ordinal counterparts are: FIRST, SECOND and THIRD.

What is 20.379 to the nearest tenth?

To round a number to the nearest tenth, you first need to consider all numbers at place value tenths and higher. In this case, that's 20.3. Then you look at the next digit along. If it's 5, 6, 7, 8 or 9 you round up, otherwise you leave the number as it is. In this case, the next numbers a 7 so we need to round up. This gives 20.379 to the nearest tenth as 20.4

What does mean median mode mean?

Mean is when you add up all the numbers then divide them by how many numbers you added up. Median is when you put the numbers in order and find out what the middle number is. Mode is the most comon used number in that set.

Choose the number that is 1 of 4 of 1of2 of 1of5 of 200?

1/4 of 1/2 of 1/5 of 200 = 1/4 of 1/2 of 200/5 = 1/4 of 1/2 of 40

= 1/4 of 40/2 = 1/4 of 20 = 20/4 = 5

What is the probability that you don't roll a sum of 3 when you roll two fair dice?

I think of it this way. Take it as two unique 6-sided dice, then you have 36 possible outcomes (6 times 6). Two of these outcomes will add to equal 3 (2 & 1, and 1 & 2), so there are 34 [36-2] outcomes which don't sum to 3. The probability is 34/36 or about 94.44 percent chance.

If you're asking what the probability you don't roll AT LEAST three is, the only roll on two normal dice less than three is two, and there's only one way to roll it: 1,1. So the probability of not getting AT LEAST three on two fair dice is 1/36.

How do you find the median of a set of 10 numbers?

List the numbers from least to greatest. Count in from both ends the same times and you will note there is no middle number, but 2 middle numbers. Take the average of the 2 middle numbers and that is the mean of the set.

What are all the factors of 780?

The factors of 780 are: 1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780