83
75% of 90= 75% * 90= 0.75 * 90= 67.5
85
For 77 83 69 72 85 90 95 75 55 45: σ=15.4071
It is: (76+83)/2 = 79.5
83
83
75% of 90= 75% * 90= 0.75 * 90= 67.5
85
For 77 83 69 72 85 90 95 75 55 45: σ=15.4071
nothing
92
It is: (76+83)/2 = 79.5
The average of the prime numbers between 80 and 90 is 83.
Your average score would be 80.
75 + 8 = = 83
83, as a percentage of 75 = 100*83/75 = 110.66... %