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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
How do you make the number 24 with the numbers 4 2 8 9 without using them more than once?
2x9+4+2. When you multiply 2 and 9 you get 18. Then when you add 4 you get 22. When you add 2 you end up with 24.
What is the probability of NOT tossing two heads on two fair coins?
The probability of tossing two coins one time and not getting two heads is 3/4 or 75%. The possible out comes of this are: HH, HT, TH, TT. There is only one way to get two heads, out of four possible results. Another, faster way to do this problem would be to multiply the probability of getting one head on one coin (1/2) by the probability of getting a head on another coin (also 1/2). This will result in 1/4. Because you want every result BUT this one, subract this answer from one. You will get the an answer of 3/4. This may not seem like a faster method when writing it out, but with a larger number of coins it would save a lot of time, because you do not have to go through all of the combinations.
The Stevens date code usually appears on the bottom of the frame behind the hinge pin. I dont believe the marks you have on the water table are the date codes. The Z was not used, the (A) is 1949 and the (I) is 1957, but these usually have numbers in the circle with them. sales@countrygunsmith.net
When performing a study what is a type 2 error?
A type 2 error is when you accept your null hypothesis when in fact the alternative is true. A type 2 error is also known as a false negative.
politics somebody acting as a diplomat on behalf of a national government or sent as an official messenger on behalf of a higher authority
Entering numeric data into non-numeric fields?
In itself, this should not pose a problem. However, you may not be able to process them as numbers.
three answers: 6849 or 4637 or 2425
What is a pace chart and how to use it?
A pace chart tracks your time and distance for various types of runs. You create one by setting up what you want to track and letting Excel do the arithmetic for you. It can be used by marathon runners to evalute their performance and determine what specifc aspects of their running needs work.
See related links for examples of pace charts.
This is a very broad question. I have included a link from the Internet, but you can find many other links by searching under sampling methods.
Usually the question is:
What makes a sample's statistics be an accurate representation of the population?
No sample is a perfect representation of the population, but some samples are more representative than others.
If you are conducting a survey, you should make sure that the results are unbiased. For example, if you are asking people if they like to excersize, you should not do this at your local health club and then claim your sample represents everyone in your community.
Your sample should contain enough data. Sometimes, important surveys require hundreds or thousands of interviews. Asking a few people questions is not a good way to collect a sample.
There should be a plan to your collection of data, that is well documented. Sometimes, it is necessary to have a professional outside group conduct the study, so a representative sample is gathered. The Gallup organization are very well known for conducting political surveys. You don't want someone to "pick and choose" his data to get a certain result.
These are just some ideas- you may find more in the related link.
What are the possible number of codes that has to be 3 digits and 2 letters without a 0 or a 1?
5!
----- x 8 x 8 x 8 x 26 x 26 (I think - I haven't done this at college yet but this
3!2! seems logical. Someone will have to corroborate me)
Which is 10 x 8 x 8 x 8 x 26 x 26 5120 x 676... I wish I had a calculator... please don't take my word for this lol. 3,380,000 + 67,600 + 13,520 = 3,461,120
How would you solve probability of all cards being the same suit if 12 are chosen from a deck of 32?
I need more information. I would guess a deck of 32 cards would only have 8 card in each suit, so it would be impossible to draw 12 cards of the same suit.
--- actuary fl
What does trend mean in mathematical terms?
You know when you have the line of best fit in a graph, you basically explain that line.
This is what and exam question may look like:
Explain the trend line of this graph.
For the answer you could possibly say: As the marks for maths increases so do the science marks.
I hope I helped. :)
What are all three digit numbers greater than500?
There are 499 of them and I do not have the time nor inclination to list them. Start at 501, and keep adding 1 until you get to 999. Then stop.
What is the probability of rolling a ten with dice?
There are 36 permutations of rolling two dice. Three of them, (4,6), (5,5), and (6,4) add up to ten. Therefore, the probability of rolling ten on two dice is 3 in 36, or 1 in 12, or about 0.0833.
What is the probability of drawing either a jack or queen?
If you use a normal card set, it would be 8/53 chance, because it it 4 queens an 4 Jacks (8 in total) and 52 cards to pick between. If you reduce it, the probability would be 2/13.
