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mart [117]
3 years ago
7

What is the mean absolute deviation of the data set? 12, 15, 7, 4, 9, 10, 9, 6

Mathematics
1 answer:
bearhunter [10]3 years ago
3 0
Here is an example:
Find the MAD of 2,4,6,8 Step 1 : Find the mean of the data : (2+4+6+8) / 4 = 20/5 = 4 Step 2 : Find the distance between each data and mean. Distance between 2 and 5 is 3 Distance between 4 and 5 is 1 Distance between 6 and 5 is 1 Distance between 8 and 5 is 3
Step 3 : Add all the distances : 3+1+1+3 = 8
Step 4 : Divide it by the number of data : 8 / 4 = 2 2 is the average absolute deviation.
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The price of gas was $1.80 in September then $2.07 in October. Find the percent of change from
Aleksandr [31]
The percent increase from $1.80 to $2.07 is 15%.

2.07 / 1.80 = 1.15 - 1 = 15% increase.

If you were trying to find how much $1.80 of $2.07 was in percentage, then here you go:

1.80 * 100 (out of 100%) = 180
180 / 2.07 = 86.95
86.95%
8 0
4 years ago
6. What number is not a prime number or a perfect square that lies between
Serjik [45]
The number would be 22
7 0
3 years ago
Yo I need this as soon as possible
joja [24]

Answer:

Step-by-step explanation:

So, if we know that 25 is the area of the square, that means that each side is 5.  That also means the diameter of the circle is 5, so the radius is 2.5.  Now, we can input the radius into the circumference formula for a circle, which is 2πradius.  So, 2π2.5 which equals 5π, or about 15.71

3 0
4 years ago
Find the value of y, please explain how and give the answer!
Gnoma [55]
You would do 3x+90=180 because a straight line equals 180°. then you find x=30. then x and z add to get 180 because x fits in the slot above z so 180-30 equals 150°. if z equals 150° then 180-150 equals 30. so x=30,y=15, and z=150
5 0
4 years ago
Please help me I’m not good at this
Pepsi [2]
Multiply the Day with 9

1 x 9 = 9 (True)
2 x 9 = 18
3 x 9 = 27
4 x 9 = 36
5 x 9 = 45 
6 x 9 = 54
7 x 9 = 63


63 minutes is your answer

hope this helps
5 0
3 years ago
Read 2 more answers
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