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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 combinations are there for the numbers 1-56 with 9 numbers?
Assuming 9 numbers chosen from 56, with no repetition allowed, there are 7575968400 possible combinations.
What is the median of these numbers 31 30.5 29.2?
When numbers are put in order either least to greatest or greatest to least, the one in the middle is the median. In an even set of numbers the average of the middle two numbers is the median.
30.5 is the median of these 3 numbers.
3.918208205 X 10^11 I think but I'm stupid so probably wrong
Find the percent of the area between the mean and 0.83 deviations from the mean?
It depends on the underlying distribution.
How percent of people can read in the country Sweden?
definition: age 15 and over can read and write total population: 99%
male: 99%
female: 99% (2003 est.)
Source: https://www.cia.gov/library/publications/the-world-factbook/geos/sw.html
Which part of this graph shows all the different indepent variable?
We would need to see the graph to respond to this question.
What if you flip a quarter and it lands on its side standing up?
then that means that if your deciding on something than the coin wont choose you have to choose
Can a chi square ever tell us whether one variable causes variations in the second variable?
Regrettably, no. The most a chi-square statistic can do is to participate in the measurement of the level of association of the variation between two variables.
What are the difference between mode median and mean?
The mode is the most common number in a sequence. This is how i remember it---->
MOde=MOst common (They both have the same beginning).
e.g if we look at this sequence 2, 4, 5, 5, 8, 5, 2, 4, 5 <---- 5 is there four times, compared to the others which are less, so the mode is 5.
The median is the middle value of a sequence of numbers. This is how I remember it --->
MEDIan=MEDIum <--- which I associate with "middle".
eg: 2, 4, 9, 5, 7. <--- if we put those in order from smallest to highest they will be, 2, 4, 5, 7, 9 and the value in the middle is 5.
The mean is the "other one" This involves adding up all the numbers and dividing it by the number of numbers there is, if that makes sense. Let me show you an example.
e.g: 4, 6, 7, 9 <--- If we add these together they will be 26. There are four numbers there. so 26 divided by four is 6.5. The point of this is to see what the "average" score is...that's if that's what you want to know.
What type of graph would be best for data points?
A scatter plot would be best for non-related data points. A line graph would be best for related data points.
How do you explain F-statistic?
If X and Y have Gaussian (Normal) distributions, then the ratio of
- the mean of m variables distributed as X2 and
- the mean of n variables distributed as Y2 has
an F distribution with m and n degrees of freedom.
