Answer:
Student A's median and Student B's mean would result in the highest grade.
Explanation:
How to find the mean:
The mean is the average.
Therefore, you must add all numbers listed, then divide the added numbers by the amount of numbers you added together. Lastly, as instructed round to the nearest whole number.
- Student A : Mean = 81
Step 1 : 25+78+80+82+85+86+88+89+96+99 = 808
Step 2: 808 ÷ 10 = 80.8
Step 3: 80.8 ---> 81
- Student B: Mean = 83
Step 1: 71+77+77+79+79+80+88+89+91+96 = 827
Step 2: 827 ÷ 10 = 82.7
Step 3: 82.7 ---> 83
How to find the median:
The median is the middle number in a sorted list of numbers.
Therefore, you list all of the numbers from least to greatest. Then, you get rid of a number from each side until you finally get to the center number. If there are two numbers left in the center you then find the mean(average) of those numbers.
- Student A: Median = 86
Step 1: Knock off a number from each side until you reach the center number(s)
25, 78, 80, 82, 85, 86, 88, 89, 96, 99 ---> 85, 86
Step 2: Find the mean(average) of the two central numbers
85 + 86 = 171 ---> 171 ÷ 2 = 85.5
Step 3: Round your answer
85.5 ---> 86
- Student B: Median = 80
Step1: Knock off a number from each side until you reach the center number(s)
71, 77, 77, 79, 79, 80, 88, 89, 91, 96 ---> 79, 80
Step 2: Find the mean(average) of the two central numbers
79 + 80 ---> 159 ÷ 2 = 79.5
Step 3: Round your answer
79.5 ---> 80