It’s should be 12.04 after you do all the math and add it up
Answer:
Mr Blake's science class
Step-by-step explanation:
The standard deviation is a measure of variation.
It tells us how far each of the data set in the distribution are far from the mean of the distribution.
The average score of students in Mr. Blake's science class was 73 with a standard deviation of 11, while the average score of students in Mrs. Arnold's class was 75 with a standard deviation of 10.
Since 11>10, Mr Blake's science class is more variable than Mrs. Arnold's class.
Mean = (8 + 9 + 10 + 16 + 17) / 5 = 60/5 = 12.
x - mean:
8 - 12 = -4, -4² = 16
<span>9 - 12 = -3, -3² = 9
</span>
<span>10 - 12 = -2, -2² = 4
</span>
<span>16- 12 = 4, 4² = 16</span>
<span>17- 12 = -5, -5² = 25
</span>
Sum of the squares = 16 + 9 + 4 + 16 +25 = 70
Variance = 70/5 = 14
Variance = 14
Answer:
This is not question but I think the question might be what the total cost is 95.50
Step-by-step explanation:
Answer: $13.55
Step-by-step explanation:
Given : A Customer purchased three pairs of pants for $17.00,$18.95 and $20.50 .
Then, the total amount he need to pay = 
Also, the amount they paid :-
Then , the amount as change we need to give back :-
Hence, the amount as change we need to give back =$13.55
