All of the following are equivalent except (4) 4+ y 4. y 4 у
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The value of z-score for a score that is three standard deviations above the mean is 3.
In this question,
A z-score measures exactly how many standard deviations a data point is above or below the mean. It allows us to calculate the probability of a score occurring within our normal distribution and enables us to compare two scores that are from different normal distributions.
Let x be the score
let μ be the mean and
let σ be the standard deviations
Now, x = μ + 3σ
The formula of z-score is
⇒
⇒
⇒
Hence we can conclude that the value of z-score for a score that is three standard deviations above the mean is 3.
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There are 3 boxes, each box has 93 tangerines.
There are 279 tangerines. They will be divided equally among 9 classrooms.
Each classroom will get 31 tangerines.
There are 279 tangerines. They will be divided equally among 9 classrooms.
Each classroom will get 31 tangerines.