0
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
State how to minimize error in sampling?
1). Variation in sample eg. Age, Geographic etc.
2). Appropriate sample size
Difference between stable population and stationary population?
differances between stationary population and stable population
a continuous or connected series: a sonnet sequence.
Like a chain, or a necklace of pearls, the pearls are in a sequence, one after the other in an orderly fashion.
What is Calgary 2- digit abbreviation?
Calgary is a city in Alberta, Canada and has no 2-digit abbreviation. The 2-digit abbreviation for Alberta is AB and Canada is CA.
There are several possible explanations: Leaving aside the two most obvious reasons: calculation error and attempted extrapolation, there are the following possibilities:
The true relationship is non-linear.
A relevant variable has been missed omitted.
The observations are very variable: leading to a very large residual error.
There is not enough variation in the independent (or predictive) variable so that Sxx is very small.
What are disadvantages of equal income distribution?
Disadvantages of equal income distribution include potential disincentives for individual effort and innovation, as people may feel less motivated to work harder if rewards are capped. It can also lead to reduced investment in skills and education, as individuals may perceive less benefit from personal development. Additionally, equal income distribution may strain resources and limit economic growth, as it could diminish capital accumulation and entrepreneurship.
What is the value of a High Standard 22 cal 9 shot W-100 revolver?
about 175- 225 dollars, depending on its condiition.
How many letters on a license plate?
The rules vary from place to place. States have different requirements. And the more vehicles on the road, the more characters are going to be required to provide unique identifications.
Most generic plates have six or seven characters.
The minimum is a single letter.
The maximum is what they can fit on the plate.
Why median is not a consistent estimator?
Because it is easily influenced by extreme values (i.e. it is not unbiased).
We're talking about 3-digit numbers that you can make out of 3, 5, 7, and 9.
-- The biggest one possible is 975.
-- The smallest one possible is 357.
-- Their difference is 618 .
The frequency can be determined by recording the sum for each toss and producing a tally chart for the outcomes.
What does n-1 indicate in a calculation for variance?
The n-1 indicates that the calculation is being expanded from a sample of a population to the entire population. Bessel's correction(the use of n − 1 instead of n in the formula) is where n is the number of observations in a sample: it corrects the bias in the estimation of the population variance, and some (but not all) of the bias in the estimation of the population standard deviation.
That is, when estimating the population variance and standard deviation from a sample when the population mean is unknown, the sample variance is a biased estimator of the population variance, and systematically underestimates it.
