Answer:
6-3c-C
Step-by-step explanation:
3(2-c)-C
3(2)-3(c)-C
6-3c-C
Answer:
The scores within one standard deviation of the mean are: 77, 79, 80, 83, 87, 88
Step-by-step explanation:
The mean of the data is 83 and the standard deviation is 6.5, find scores within 1 standard deviation of the mean:
Between
83 - 6.5 = 76.5
83 + 6.5 = 89.5
So:
The scores within one standard deviation of the mean are: 77, 79, 80, 83, 87, 88
Answer:
9/10 x 4/5 = 36/50 simplified = 18/25 is your area
