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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

How do you find the mean of numerical data?

You average the #'s and then you divide them to however many #'s there are. There MAY BE a DECIMAL but its okay!

How many 6 digit numbers from 2 3 4 5 7 9?

If they can only be used once each: 720

If they can repeat: 46,656

How many 5 number combinations can be made from 96667?

You would use combinations instead of permutations so just type in your calculator 96667C5 and you should get 70333953523652148234618

Or, you could use the formula...

r=number chosen

n=number to chose from

n!/((n-r)!(r!))

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If the question was meant to ask - How many 5 number combinations (actually,

permutations) can be made from (the digits) 9,6,6,6,7 ? - The answer would be:

2(5C2) = 2[5!/(3!2!)] = 20

i.e., 96676, 96766, 97666, ...

Kim wants to cut out the digits to write all the whole numbers from 1 to a million inclusively how many of each of the ten digits will Kim need to do this?

Zeros: 488,895

Ones: 600,001

Twos, Threes, Fours,

Fives, Sixes, Sevens,

Eights, Nines: . . . . . . 600,000 each

Total: 5,888,896 digits.

Start cutting, Kim !

4 is what percentage of 54?

4, as a percentage of 54 = 100*4/54 = 7.407...

How many decimeters in 1000 meters?

There are 10 decimetres in one metre. Therefore, 1000 metres is equal to 1000 x 10 = 10000 decimetres.

How many feet in .508 kilometers?

1 inch = 2.54 cm

The question is the number of feet in 508 m or 50800 cm

Going from a smaller unit (cm) to the larger one (inches) we divide

50800 / 2.54 = 20000 inches

1 foot = 12 inches

20000 / 12 = 1666.666 feet.

1666 feet 8 inches■

How many feet are in 622 kilometers?

There are 0.0003048 feet in one kilometre. Therefore, rounded to two decimal places, 622 kilometres is equal to 622/0.0003048 = 2040682.41 feet.

If the cards are numbered from 1 to 8 what is the chance of picking a 6 from the box?

The answer depends on how many sets of 1-8 numbered cards are in the box, how many are drawn and whether or not they are replaced after drawing.