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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 many 3 digit numbers are formed from 1234567?
If repetition is allowed . . . . . 343
If repetition is not allowed . . . . . 210
In order to be divisible by both 2 and 5, the number must be divisible by 10.
That pretty well means that the last digit always has to be zero.
We're also going to assume that since each number must be a 5-digit, leading zeros
are ruled out.
First digit . . . . . 2, 3, 4, 5 . . . . . 4 possibilities
Second digit. . . 0, 2, 3, 4, 5 . . . 5 possibilities
Third digit. . . . . 0, 2, 3, 4, 5 . . . 5
Fourth digit . . . 0, 2, 3, 4, 5 . . . 5
Fifth digit . . . . . 0
Total number of possibilities = 4 x 5 x 5 x 5 = 500
How many number combinations of 6 numbers are possible from 17 numbers?
If they can repeat, then: 17^6=24,137,569
If they can't repeat, then: 17*16*15*14*13*12=8,910,720
schedule,coast,and quality
How many different possible outcomes are there when four 10 sided dice are rolled at the same time?
There are 104, or 10000 permutations of four 10 sided dice.
What does frequency mean in relation to alternating current?
Alternating current (AC) continually flows in one direction then it changes direction and flows the other way. This switching back and forth creates what is called a sinusoid or sine wave. Frequency is the rate of this back and forth switching in alternating current. Frequency is measured in Hertz (Hz) which is the number times a wave switches back and forth PER SECOND or better described as CYCLES PER SECOND.
How do you find out the width of a box and whisker plot?
The sides of the box are the quartile values: the left is the first quartile and the right is the third quartile. The width, therefore is the interquartile range.
What is the definition of misleading data?
mis leading data is data you get that is not true. It can telll you u spent $800 on a coat but actual cost $3.
What is the formula for q correlation?
Once you have figured out all the quadrants and their respective values, use:
q=a+b-c-d/a+b+c+d
For example if:
a=6
b=3
c=4
d=2
q=6+3-4-2/6+3+4+2
=3/15
for example
u have
1,2,3,4,5,6,7,8,9 ,,,,,,, here n=9 ,,,, odd number
here median is 5
when n is even number for example :
10,20,30,40,50,60 ,,,,,,,,, here n=6
median will be : (30+40)/2 = 35
so median is the middle value
and n here is number of observations.
hope this helps :))
Is the time taken to run 10 kilometers discrete or continuous variable?
It is a continuous variable. BUT as soon as you measure it, the limitations of your timing device make the observation a discrete variable - even if you can measure with an accuracy of a nanosecond.
Be able to reject the null hypothesis and accept the research hypothesis
