0
Still curious? Ask our experts.
Chat with our AI personalities
ViviYour ride-or-die bestie who's seen you through every high and low.
Chat with Vivi
RafaThere's no fun in playing it safe. Why not try something a little unhinged?
Chat with Rafa
CoachSuccess isn't just about winning—it's about vision, patience, and playing the long game.
Chat with CoachAdd your answer:
Earn +20 ptsQ: What is the formula for calculating variance and standard deviation?
Write your answer...
Submit
Still have questions?
Continue Learning about Statistics
What is the formula for a weighted standard deviation?
Arithmatic Mean
Is standard deviation biased or unbiased?
Standard deviation (SD) is neither biased nor unbiased. Estimates for SD can be biased but that depends on the formula used to calculate the estimate.
Coefficient of Deviation?
Coefficient of deviation (CV) is a term used in statistics. It is defined as the ratio of the standard deviation (sigma) to the mean (mu). The formula for CV is CV=sigma/mu.
What is the standard error if the population standard deviation is 100 and the sample size is 25?
Formula for standard error (SEM) is standard deviation divided by the square root of the sample size, or s/sqrt(n). SEM = 100/sqrt25 = 100/5 = 20.
IQ test scores are normally distributed with a mean of 100 and a standard deviation of 15 An individual's IQ score is found to be 110 Find the z-score corresponding to this value?
mean= 100 standard deviation= 15 value or x or n = 110 the formula to find the z-value = (value - mean)/standard deviation so, z = 110-100/15 = .6666666 = .6667
Trending Questions
What is the median of a number?
A single card is drawn from a deck Find the probability of selecting a 10 or a diamond?
What is the probability of rolling dice with the sum 13?
How many standard deviations above the mean is the 90th percentile?
What is 8.275 to the nearest hundreth of an ounce?
What is jutastat?
Is there a positive correlation a negative correlation or no correlation between daily newspaper circution and the number of television sets in homes?
Application of statistics in pharmacy?
What is the implication of any correlation found between the variables?
What is the phenotype ratio of a cross between a heterogeneous male and a pink eyed female?
What are the uses of statistics in Banking Sector?
What is the difference between grouping and sorting a report?
Why do we have to be statistics friendly?
What is the difference between loadrunner and winrunner?
What of the following numbers could not be a probability explain. 13 0 89 1 54?
Ways in dividing a square into 4 equal parts?
How do you figure a percent?
How many independent variables should an investigation have?
What is 10 percent of 3000000?
What is Xi mean in statistics?
Copyright ©2025 Infospace Holdings LLC, A System1 Company. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Answers.