Answer:
2.57
Step-by-step explanation:
The mean absolute deviation is the mean of the absolute values of the differences from the mean.
<h3>Application</h3>
The mean of the dataset is the sum of values, divided by their number:
mean = (20 +16 +21 +16 +22 +16 +15)/7 = 126/7 = 18
The absolute values of the differences from 18 will have an average of ...
mean(|differences|) = (2 +2 +3 +2 +4 +2 +3)/7 = 18/7
mad(data) ≈ 2.57
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<em>Additional comment</em>
Some calculators have the mad( ) function built-in. See the second attachment, for example.
Step-by-step explanation:
For the triangles to be congruent, TS = WV (2x + 8 = 16)
Therefore 2x = 8 and x = 4.
Answer:
The total cost of the salad is $59.50
Step-by-step explanation:
If each salad irrespective of there type costs $8.50
and Ellie ordered 5 tuna and 2 chicken salad, that
5+2 = 7 salads
Then the total cost of the salad will be
7*8.50 = $59.50
Answer:
49
Step-by-step explanation:
First plug in 7 for x and solve
7(14-7)
7(7)
49
This is a simple ratio question, but first you need to find the number of non red marbles uses... call it a
Jar Tank
54 a
----- ----
1 6750
so using your multiplication skills the number of non red marbles is
Non red = 54 x 9750
thene the total number of marbles in the tank is Red + Non Red
hope it helps