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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
Using 9 18 20 24 only once make an equation equal 18?
(24-20) x 9 -18 =18
Two hours later!!! UGH!!! I need asprin!!! =)
What is an ouutlier effect on the median?
An outlier pulls the median towards it. For example
1,2,3 Median=2
1,2,3,7 Median=2.5
What are the four types of measurements?
According to Stanley Smith Stevens, the four levels of measurement are:
- nominal - for example counting balls of different colors
- ordinal - where the measured values have an order - for example small, medium, large
- interval - where a distance is defined between the measured values - for example, Celsius temperature
- ratio - where we can divide values and get a meaningful answer - for example length and weight
the 4 types of measurements are mass,volume,distance,and temperature
-ZOEY
When a number is divided by 100 the digits move?
The digits should stay where they are. The decimal point
should move 2 places to the left.
What does relative error percentage mean?
Relative error percentage is a decimal percentage between 1 and 0 such that if you multiply the actual answer by (1-errorrel) you get your approximate value. In other words relative error is an indicator of how far away your apporximation is from the real value in terms of percent of the real value.
What do you do if you reject your hypothesis?
If a hypothesis is rejected because it was disproved, then one can rephrase the hypothesis to exclude the disproven data. For example: Hypothesis: White appears black. Data: When viewed by the naked eye in daylight, white appears differently than black. When viewed by the naked eye in darkness, white appears black. Reword hypothesis: In darkness, white appears black.
How many 3 digit numbers can be made with 743?
3 x 2 x 1 ie 6
First digit can be one of 3, 4 & 7, second one of the remaining 2 digits...
The sum of the numbers in a set of data divided by the number of pieces of data?
its an geometric solid
answer: You have just defined "average."
Prob(No sixes in 6 rolls) = [Prob(Not a six in a roll)]6 = (5/6)6 = 0.3349
What is substantive significance?
A 'Substantive Significance' is concerned with the meaning. So, if you do an experiment concerning the population in a country, what do the findings say about population effects themselves?
Hope this helps!
~HellsBaran
What is the median of a single value?
The median is the number in the middle. You find the median,
by putting the values in order from lowest to highest, then find
the number that is exactly in the middle.
If you only have a single value, one could argue that it is in the middle.
That would make the single value the median. One could also argue that there
no numbers on either side to the definition makes no sense and there is no median
of a single value.
