If Emma received a standard score on a test that was ranked in the 82nd percentile, it indicates that . A. 18% of students scored lower than Emma B. 82% of students scored lower than Emma C. Emma received a B on her test D. Emma answered 18% of the test questions wrong

B. 82% of students scored lower than Emma

Step-by-step explanation:

Given:

Emma received a standard score on a test that was ranked in the 82nd percentile

Solution:

Let total number of students = 100

By using formula:

Percentile =

Where Number of students scored lower than Emma

Percentile =

By cancelling denominator 100 from numerator 100,

Number of students scored lower than Emma = 82

To change it into percentage,

Number of students scored lower than Emma =

                                                                             = 82 %

Therefore, 82 % of students scored lower than Emma.

a) justify

step-by-step explanation:

justifying is just part of everyday life. justify kind of means proof so i think the answer is a) justify.

correct answer:

i^31 = -i