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What is the approximate percentage score of less than 140 using the 68-95-99.7 rule if a set of test scores is normally distributed with a mean of 100 and a standard deviation of 20?
The 68-95-99.7 rule states that in a normally distributed set of data, approximately 68% of all observations lie within one standard deviation either side of the mean, 95% lie within two standard deviations and 99.7% lie within three standard deviations.Or looking at it cumulatively:0.15% of the data lie below the mean minus three standard deviations2.5% of the data lie below the mean minus two standard deviations16% of the data lie below the mean minus one standard deviation50 % of the data lie below the mean84 % of the data lie below the mean plus one standard deviation97.5% of the data lie below the mean plus two standard deviations99.85% of the data lie below the mean plus three standard deviationsA normally distributed set of data with mean 100 and standard deviation of 20 means that a score of 140 lies two standard deviations above the mean. Hence approximately 97.5% of all observations are less than 140.
What does egregous mean?
outstanding, usually in the sense of outstanding mistake or outstanding lie
What does the 35th percentile mean?
35% of values lie below the 35th percentile. The median (middle value) is the 50th percentile, 50% lie below it and 50% above.
Why can you never really have 100 percent confidence interval?
You can. For example, you can be 100% certain that the value when you roll a die will lie between 1 and 6. Or that the mean of 100 rolls will lie between 1 and 6. It is simply that a 100% CI has little use.
What is a statistic inflection point?
There are two points of infection (the points where the curvature changes its direction) which lie at a distance of one standard deviation above mean and one standard deviation below mean.
What does scratch a liar find a thief mean?
It means that someone who will lie will more than likely steal also, and if you look inside a liar, you'll find a thief.
Is granite harder tha a diamond?
NO! that is a granite marketing lie. Coffee mugs and plates will scratch it.
How do you write a sentence for skulk?
skulk - to lie or keep in hiding, as for some evil reason: The thief skulked in the shadows.
What does mantira mean in English?
lie as in told a lie
Did Lie to you get cancelled?
If you mean 'Lie to me' the answer is unfortunately 'yes'.
What does French word lie mean?
(il / elle) lie (from verb lier, to tie up)> he / she ties [something] up la lie (feminine noun) - this is the particles that you may find in wine, tending to precipitate when the wine is still.
What is the Swedish word for lie?
if you mean lie as in tell a lie, its "ljuga" or "lögn", where 'lögn' is the substantive and 'ljuga' is the verb.
How credible is a thief as a witness?
A thief may not be considered a credible witness due to their criminal background and potential motives to lie or manipulate the truth. Their credibility could be called into question during legal proceedings.
What does it mean when a guy lie to you?
he is cheating on you
What does the term To Fudge It mean?
to lie about it
What does the word previcate mean?
To lie
What that mean fear is simply the consequence of every lie?
everyone fears to cover a lie
