119/30 or 3.96 or 3 29/30
Explanation:
First write all numerators above the least common denominator (in this case 30)
Then calculate the sum or difference
Data:
15 16 14 15 19 17
n=6 points
sum is 96
mean is 96/6 = 16
Now we look at the absolute deviations, each of which is the absolute value of a score minus the mean, basically the distance of the score to the mean .
Scores 15 16 14 15 19 17
AbsDev 1 0 2 1 3 1
The sum of the absolute deviations is 8 and there are six of them so the
Mean Absolute Deviation = 8/6 = 4/3
Answer: 2. 8/6
Answer:
Step-by-step explanation:
-2/2
Yes he has enough index cards for all students
