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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.
36,756 Questions
What is 7 over 120 as a percentage?
Expressed as a percentage, 7/120 x 100 = 5.83 recurring (that is, 5.83333...) percent.
Why is penguin storm 1 2 3 4 5 6 7 8 910 11 12 bad?
OK heres why. some penguin storms give out virus,and club penguin knows when you use it. cpstaff will banned you forever and you don't want that OK?
And sometimes it slows down your computer. that's it so take my information and think what you are doing with penguin storm is wrong!
How would you find the mean of eight numbers?
add them all together and divide by 8.
Another Answer:
Sort them ascending order and pick either the 4th or 5th number.
The Death rate is: 6.58 deaths/1,000 population which was recorded in 2007
it is 10
No it is not. Sample space is: H,H & H,T & T,H & TT. As you can see, the probability of H,H is 1/4 and the probability of a H & T is 1/2.
In what products do gas tubes find application?
Product types included diodes, rectifiers, control-type industrial triodes, hydrogen and nonhydrogenthyratons, and other gas and vapor tubes.
It is false. There may appear to be no relationship for several reasons:
- The most likely is that there is a third variable which is hiding the trend. To take a couple of crude examples, consider the relationship between age and earnings. If you look at the overall population it will be quite a wide scatter and there may be little trend - if any. The reason is that you have not included occupation. Once you have adjusted for occupation you will get a much better trend in the relationship.
- Similarly, if you have temperature measurements for your hometown, taken at various times of the day and night, you may see no trend. This is because you are not controlling for the time of day. In addition to the daily variations, there is also a longer term cycle - the seasonal variations (and then cycles over geological periods).
- With some regular time-series data, you may find "aliasing", which will give a completely wrong relationship (if you find one). If your data are collected at regular intervals, but ones which are out of synch with the periodicity of the variable, you may find that the effects of the asynchronicity are greater than the trend.
- The data set may have gone beyond the range of one relationship and into a different relationship. For example, take a spring and hang an increasing amount of mass from it. As the mass increases the spring will get stretched in direct proportion to the mass. However, keep adding mass and the spring will enter a phase of inelastic extension (until it breaks). If you mix data from the elastic and inelastic phase, you will not find a proper relationship.
What is the best government opinion poll?
None of them are very good. They only sample a small group of people and then base their findings on that group.
The first four cards could all be of different suits.
The next four cards might also all be of different suits.
This would mean that you would have two of each suit.
Then you might have to draw a ninth card to be sure of having three of the same suit.
How many pounds per square inch is high heel shoes?
You need to know two more pieces of information:
1. The weight of the person.
2. The area of the bottom of the heel contacting the floor.
If both feet are on the Floor, add the Area of BOTH Heels (in Sq Inches) together and divide the weight (in Pounds) by the Area (in Sq Inches). For Example:
Area = 1/2 Square Inch (1/4 + 1/4 Sq Inches)
Weight = 100 Pounds
Force on Floor = 100 lbs / (1/2 Sq In.)
= 200 lbs/Sq In.
How many numbers divisible by 3 or 4 are there from 1 to 20?
3=
3,6,9,12,15,18 (6 of them)
4=
4,8,12,16,20 (5 of them)
6+5=11
But only 1 number (12) divisibly by both.
What can you do a bar chart on?
you could do a bar chart on what types of crisps people like or on which days it rains.
Most parametric and many non-parametric tests for testing the significance of hypotheses are based on the assumption of normality - or approximate normality.
