Step-by-step explanation:
To find the mean absolute deviation of the data, start by finding the mean of the data set. Find the sum of the data values, and divide the sum by the number of data values. Find the absolute value of the difference between each data value and the mean: |data value – mean|.
Answer:
The score is 66
Step-by-step explanation:
Say the unknown score is x
Average = Total score/no of occurrence
78 = (x + 76 + 74 + 76 + 80 + 83 + 91)/7
78 × 7 = x + 76 + 74 + 76 + 80 + 83 + 91
546 = x + 480
546 - 480 = x
66 = x
∴ x = 66
Answer:
=−24 hope this helps!!
Step-by-step explanation:
Answer: -5
Step-by-step explanation:
84 + 8 -676
The equation is -42=2a+15
I just picked the variable to be a
Now I would divide 2a by 2 to make it just a
And divide -42 by 2 to make it -21. Then you would have -21=a+15
Subtract 15 from 15 to cancel it out
And then subtract 15 from -21 to get
-36=a
the variable is -36
