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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.

###### Asked in Math and Arithmetic, Chemistry, Statistics, Percentages, Fractions, and Decimal Values

### What is the percent error formula?

Percent Error is the difference between the true value and the
estimate divided by the true value and the result is multiplied by
100 to make it a percentage. The percent error obviously can be
positive or negative; however, some prefer taking the absolute
value of the difference.
The formula is the absolute value of the experimental value
(minus) the theoretical value divided by theoretical value times
100.
% error = (|Your Result - Accepted Value| / Accepted Value) x
100
...

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###### Asked in Statistics, Billboard Music Charts

### Who had 5 number 1 hits on billboard charts in his first year?

Elvis Presley

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###### Asked in Statistics

### Is income a ratio or interval scale measurement?

Income is a ratio measure. In ratio measures, one can order
categories, specify the difference between two categories, and the
value of zero on the variable represents the absence of the
variable. Thus, income can take on values of $0, $10, $30,000, etc.
Zero dollar income means the absence of income, making income a
ratio measurement.
...

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###### Asked in Math and Arithmetic, Statistics, Algebra

### What is the sign of slope of the regression line if the correlation coefficient is -0.15?

The sign is negative.

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###### Asked in Math and Arithmetic, Statistics

### A nominal scale variable is?

Descriptive, non-numeric, qualitative. Furthermore, they cannot
be ordered (as in small, medium, large)
...

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###### Asked in Math and Arithmetic, Statistics

### What does the median score mean?

the number that is in the middle of that particular set of
numbers.

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###### Asked in Math and Arithmetic, Statistics, Probability

### What is the value of z if the area between -z and z is 0.754?

Since the normal distribution is symmetric, the area between -z
and 0 must be the same as the area between 0 and z. Using this
fact, you can simplify this problem to finding a z such that the
area between 0 and z is .754/2=.377. If you look this value up in a
z-table or use the invNorm on a calculator, you will find that the
required value of z will be 1.16. Therefore, the area between -1.16
and 1.16 must...

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###### Asked in English Language, Bachelors Degrees, Statistics

### How can you do double graduate?

If you are referring to graduating with a double major, then yes
you can.

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###### Asked in Relationships, Statistics

### What is objectivity in statistics?

the use of random sampling that results in an unbiased
conclusion.

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###### Asked in Math and Arithmetic, Statistics, Probability

### What event has a probability of 0?

-- The freezing over of Hell.
-- A confirmed sighting of flying pigs.
etc.
Besides anything that is impossible, as noted above, the
simultaneous occurrence of two mutually exclusive events has a
probability of zero: It is raining and it is not raining, it is on
and it is off, etc.
...

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###### Asked in Math and Arithmetic, Statistics

### What does CL mean in mathematical terms?

It may stand for the number 150 (Roman numbers). In statistics,
CL usually refers to "Confidence Level," which establishes a
likelihood (typically 90 or 95%) an estimated value will fall
within a given Confidence Interval (a range of estimated values).
For example... [I'll get more done on this later]
...

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###### Asked in Math and Arithmetic, Statistics

### What is the meaning if the examinee has a percentile rank of 79 in the entrance test?

It means 79 percent of the people did not was well as he or she
did.
It also means 21 percent of the people did better.
...

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###### Asked in Math and Arithmetic, Statistics, Algebra

### How many four digit numbers are made of odd number?

If you're asking for 4 digit numbers where all four digits are
odd, then the lowest number possible is 1111, and the highest is
9999. You only have 5 digits to work with. The answer is: 54 - 53 =
625 - 125 = 500.
Subtract the 5 cubed for the numbers less than 1111, which are
not four digits.
...

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###### Asked in Math and Arithmetic, Statistics, Probability

### What is the probability of obtaining exactly 4 heads in 6 flips of a fair coin?

The probability of a head in one flip is 1/2.
The probability of HHHHTT is (1/2)6 = 1/64
The possible correct flips are HHHHTT, HHHTHT, HHTHHT, HTHHHT,
THHHHT, HHHTTH, HHTHTH, HTHHTH, THHHTH, HHTTHH, HTHTHH, THHTHH,
HTTHHH, THTHHH, TTHHHH, each with a probability of 1/64.
Total probability is 15/64.
...

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###### Asked in Statistics, Computer Programming

### What is traversing in data structure?

visit each element in a list at least onces.

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###### Asked in Math and Arithmetic, Statistics

### A bar chart is good for showing what type of data?

comparing

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###### Asked in Religion & Spirituality, Math and Arithmetic, Statistics, Lotteries

### What lottery number occurs most often?

Please try and understand the enormity of what you are asking,
as this question has come up before.
Lottery "numbers" are a series. Various balls or slips or number
segments are generated, typically with two digits a piece, and a
certain number of pieces selected.
Thus there might be six balls each with a two digit number on
them.
I cannot conceive, given the thousands of lottery game types -
let alone how many times each has been played - that there is...

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###### Asked in Math and Arithmetic, Statistics

### How do you do a stem and leaf graph with money?

Instead of 4|5 meaning say 4.5 have it mean £4.50 so like
£|pence or if in whole numbers just the same 4|5 means £45
...

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###### Asked in Math and Arithmetic, Statistics, Algebra

### What does a frequency chart or table look like?

Another name for a frequency chart is a stem and leaf
plot.
EXAMPLE: If i have the numbers 72,73, 74, 87, 88.
92,99
First you need to order them into least to greatest.
DEFINITIONS
stem- (basically like the tens) so 73's stem is 7
leaf- (basically like the ones) so 73's leaf is 3
Stem l Leaf
____________
7 l 2,3,4
8 l 7,8
9 l 2, 9
In the graph I've shown you I've numbered the numbers from
least to greatest going vertically (stem) horizontally
(leaf)
IT IS INCORRECT IF...

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###### Asked in Math and Arithmetic, Statistics, Algebra

### What is the least four digit number?

1,000 is the least 4-digit number.

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###### Asked in Math and Arithmetic, Statistics, Definitions

### What is the definition of score in maths terms?

A score is equal to 20.

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###### Asked in Math and Arithmetic, Statistics, Algebra

### Which digit in 4.628 has the least value?

The number 8 in that question is the number with the least
amount of value (0.008).
...

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