Define mean, median, mode, variance, and standard deviation, Basic Statistics

Assignment Help:

Explain what central tendency and variability are. In your answer define what the mean, median, mode, variance, and standard deviation are. What is the difference between the descriptive standard deviation and the unbiased estimate of the standard deviation? When would you use the unbiased estimate?

Central tendency is to describe where the data are and variability is how spread out the data are... Variability tells on how constant the score are. The mean is the sum of all the values in a group divided by the number of the values in that group. The median is the average but of a different kind, the median in the midpoint in a set of scores, it is the half way point which is 50% the mode is the last measure of central tendency it is the precise measure of the central tendency. Variances is used as a measure of how far a set of numbers are spread out from each other and the Standard deviation represents the average amount of variability in a set of scores. The standard deviation is the square root of the variance.


Related Discussions:- Define mean, median, mode, variance, and standard deviation

N345, An HIV educator wishes to determine whether the method of delivering ...

An HIV educator wishes to determine whether the method of delivering teaching influences adherence with antiretroviral therapy. She decides to measure adherence as viral load (a r

Identification of critical data elements, Check numbers for No Neighboring ...

Check numbers for No Neighboring States with Video Gaming, 2% inflation, 4 Average Bets Numbers for 2018 Average Return -0.082 Net Income -$2,052,859 End of Year Cash $5,0

one-way anova and hypothesis , Suppose we wanted to compare the somatic co...

Suppose we wanted to compare the somatic complaints (as measured on a scale known as the Physical Symptom Survey or PSS) of three groups of people; nonsmokers, smokers, and people

Calculate the expected value, Imagine you are faced with the opportunity to...

Imagine you are faced with the opportunity to play two coin flips, in which you get to call heads or tails prior to the flip of a fair, two-sided coin.  (That is, heads and tails h

Statics process control and improvements, 1. Warm-up Exercise Volumes I,...

1. Warm-up Exercise Volumes I, II, III, and IV of Shakespeare are in sequence next to one another in the library bookcase.  Each volume has 2" of pages and the front and back co

Estimate of the population mean time, The average cost per night of a hotel...

The average cost per night of a hotel room in New York City is $273 (SmartMoney, March 2009). Assume this estimate is based on a sample of 45 hotels and that the sample standard

Process costing - accounting for scrap.., a company has two processes whose...

a company has two processes whose details are as follows: Materials 3000kg @ k0.30/kg, labour K120 for process 1 and material 2000kg @ k0.40/kg and labour k84 for process 2. actual

Calculate the predicted mean temperature, The following are actual data sho...

The following are actual data showing the latitude of a sample of major cities in the northern hemisphere and their mean high annual temperature. latitude(X)    mean high temp(Y

Calculate the average account balance, In June 2009, the average Australian...

In June 2009, the average Australian credit card account balance was $3,127, according to data extracted Assuming that these balances are approximately Normally distributed with a

Probability, A certain manufactured item is visually inspected by two diffe...

A certain manufactured item is visually inspected by two different inspectors. When a defective item comes through the line, the probability that it gets by the first inspector is

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd