To find the average, add the scores and divide the sum by how many scores you are adding: 81 + 76 + 91 + 73 + 79 = 400 ÷ 5 = 80.
73 questions on the test, all worth the same credit. Score 79% means you got -- 58 correct (79.452%) -- 15 wrong (20.548%)
71 72 73 74 75 76 77 78 79
79 + 1 78 + 2 77 + 3 76 + 4 75 + 5 74 + 6 73 + 7 72 + 8 (Etc.) I hope you get the picture.
Thursday--67 degrees Friday--70 degrees Saturday--73 degrees Sunday--76 degrees Monday--79 degrees
The arithmetic mean is 79.
79
The variance of 73 72 67 74 78 84 79 71 76 76 79 81 75 80 78 76 78 = 16.8456
72 73 79 75 76 81 81 85 88
The mean (average) of 76, 63, 79, 63, and 74 is 71.
1
73 questions on the test, all worth the same credit. Score 79% means you got -- 58 correct (79.452%) -- 15 wrong (20.548%)
61 + 73 + 71 + 80 + 87 + 90 + 90 + 90 + 87 + 83 + 73 + 63 = 948 / 12 = 79 The average of the numbers is therefore 79.
76 years. The number of years it is from 1879 to 1955 is represented by the expression 1955 - 1879, which equals 76 years.
They could come from a table of integers. They are certainly not from any multiplication table (other than for 1).
71 72 73 74 75 76 77 78 79
1.0822
79+82+93+91+100=445/5=89