In Ms. Miller's English class, students are given five tests in a semester. At the end of the semester, the scores that a student has earned on the five tests are averaged to obtain that student's class average. So far, DeShawn has taken the first four tests, and his scores are 71%, 90%, 82%, and 77%. Which of the following is the range of all the class averages that DeShawn could possibly receive at the end of the semester?

The options are;

A. 64 - 84%

B. 64 - 100%

C. 80 - 84%

D. 80 - 100%

Option A: 64% - 84%

Step-by-step explanation:

We are told his scores on the five tests are averaged to obtain that student's class average.

Now, we are only given 4 of the scores which are; 71%, 90%, 82%, and 77%.

Now, maximum value of the 5th score will be 100% while the minimum value of the 5th score will be 0%

Thus,to find the range of the average score, we will find the average with the maximum 5th score and the minimum 5th score.

With maximum 5th score of 100%, we have an average of;

(71% + 90% + 82% + 77% + 100%)/5 = 420%/5 = 84%

With minimum 5th score of 0%, we have an average of;

(71% + 90% + 82% + 77% + 0%)/5 = 320%/5 = 64%

Thus, the range of all the class averages is; 64% - 84%

the first dot plot best represents the data

plzplzplzplz mark brainliest and have a good day

answer: option a.

step-by-step explanation:

you know that the quadrilateral opqr ( a four sided figure) is inscribed in circle. this means that all its vertices are on the circle.

then, by definition, the opposite angles of the quadrilateral are supplementary, this means that the sum of their measures is 180 degrees.

you can observe in the figure that the angles ∠opq   and the angle ∠orq   are opposite, therefore:

then, can be used to d to calculate the measure of ∠opq