Statistics

1.5-2.5 Hz

It enables you to judge whether or not you have made a culculation error in the detailed working.

For example if you want 2.45 * 4.12, the answer is roughly 2.5 * 4 = 10

If your answer comes out as 0.5947 you've made an error (typed / instead of *)

a random sample

scatter chart

Arrange the numbers in ascending order and pick out the middle number but sometimes the two middle numbers need to be added and divided by 2 if there are an even set of numbers.

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The middle number (in a sorted list of numbers).

To find the Median, place the numbers you are given in value order and find the middle number.

Example: find the Median of {13, 23, 11, 16, 15, 10, 26}.

Put them in order: {10, 11, 13, 15, 16, 23, 26}

The middle number is 15, so the median is 15.

(If there are two middle numbers, you average them.)

Accordingly:

The median for: 94 83 78 70 66 68 75 53 54

is:

94, 83, 78, 75, 70, 68, 66, 54, 53

The median is : 70

The median for:

59 83 91 64 65 71 62 86 90

is:

91, 90, 86, 83, 71, 65, 64,, 62, 59

The median is 71

H and T blows

The sum of the first n odd numbers is n squared.

25 x 25 = 625

Assuming there is no repetition, you want the number of groups of 4 numbers, and the order doesn't matter: this is calculated as 33 over 4; which is the same as (33 x 32 x 31 x 30) / (1 x 2 x 3 x 4)

the answer is 250

1/9th

average is defined as a single value which has tendency to represent the data as a whole. averages are also called "measure of central tendency" or "measure of location"

5

yes

i need to find the answer of my question becase this is my assignment and i will pass it tommorow...

Import means to bring anything into something else. Goods into the country are called imports. Information into a computer hard drive is called an import. Data from a file into another file is called an import.

Dunoon means "Hill on the water".

In a normal deck of playing cards there are two.

Infinitely many.

Start with sums of two numbers:

0 + 80, 1+79, 2 + 78 etc

then

0.1 + 79.9, 0.2 + 79.8, 0.3 + 79.7 etc

then

0.001 + 79.99, 0.02 + 79.98 etc

and so on.

Then you can have sums of 3 numbers.

and of 4 numbers, etc

You can also have irrational numbers in any of these sums..

To increase the number of options you can include negative numbers or subtractions:

81 - 1, 82 - 2, etc and so on with decimal fractions and irrationals in pairs, triplets, quartets, etc.

And throw in multiples. An infinite number of pairs, triplets etc.

The probability of 3 specific dice rolls is the probability that each one will happen multiplied together. For instance, the probability of rolling 2 then 6 then 4 is the probability of all of these multiplied together: The probability of rolling 2 is 1/6. The probability of rolling 6 is 1/6. The probability of rolling 4 is 1/6. Multiply these together and we get the total probability as 1/216

If there were 10 sock in a basket and 2 were red and 8 were blue then the odds of getting a red sock is 2/10 which can be simplified to 1/5. This means that if you picked a sock from the basket 5 times (each time throwing it back) you would most likely get 1 red sock and 4 blue socks.

The odds of getting a blue sock is 8/10. This can be simplified to 4/5.

Basically you take the total and put it as the denominator. Then you take the total number of the object (in this case the socks) and put it as the numerator. Got it?

Hope this helped!! :)

1st u read the column that has the subject

then the tally column

last u determine/read the frequency column

25 x36 = 900

13 x 32 = 416

13 x 40 = 520

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936

936-900 = 36 (13th observation)

I would have thought this blindingly obvious but no matter, a lower percentage error is better because it means your approximation to a solution is closer to the real answer than an approximation with a higher error.

-- 893 of them have no 4's.

-- Three of them have exactly one 4: 4xx, x4x, and xx4.

-- Three of them have exactly 2 4's: 44x, 4x4, and x44.

-- One of them has exactly three 4's: 444.

-- None has more than three 4's.

i dont kno da answer haha