Ther are four test scores 97,85,92,86. what is the mean median and mode?
2 answers:
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We want to find the value that makes
To find it we must look at the standard normal table, using the complementary cumulative table we find that
Then, using the z-score we can find the minimum score needed, remember that
Where
σ = standard deviation
μ = mean
And in our example, x = minimum score needed, therefore
Rounding to the nearest integer the minimum score needed is 568, if you get 568 you are at the top 20.1%.
Answer: Heyaa!!
Step-by-step explanation:
<u>Convert the mixed numbers to improper fractions, then find the LCD and combine.</u>
Hopefully this helps <em>you !</em>
- Matthew :))