All categories

3 years ago

What is the MAD of this numbers?

Mathematics

1 answer:

Stella [2.4K]3 years ago

5 0

We know that
The MAD is the mean absolute deviation of the data

step 1
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
sum of the data values=[130+150+190+100+175+120+165+140+180+190]
sum of the data values=1540
number of data=10
Mean=1540/10-----> 154

step 2
Find the absolute value of the difference between each data value and the mean: |data value – mean|.
 |130 – 154|=24
|150 – 154|=4
|190 – 154|=44
|100 – 154|=54
|175 – 154|=21
|120 – 154|=34
|165 – 154|=11
|140 – 154|=14
|180 – 154|=26
|190 – 154|=44

step 3
Find the sum of the absolute values of the differences.
=[24+4+44+54+21+34+11+14+26+44]------> 276

step 4
Divide the sum of the absolute values of the differences by the number of data values.
276/10-----> 27.6

the answer is
27.6

You might be interested in

The ratio of the angles of a triangle is 3:8:4. What is the size of the largest angle?

Phantasy [73]

Answer: 96°

Step-by-step explanation:

Sum of angles of a triangle = 180°

3 + 8 + 4 = 15

The biggest angle is 8/15 * 180 = 96°

7 0

3 years ago

A frog is climbing out of a well that is 12-feet deep. The frog can climb 3 feet per hour but then it rests for an hour, during

vovangra [49]

Answer:

7 hours and 20 minutes.

Step-by-step explanation:

5 0

3 years ago

1. Solve 4x + 5 > 5x – 2 for x.

Zigmanuir [339]

The answer should be X < 3 !

Explanation:

You first minus 5 to the other side which gave you -3 . Then you minus the 5x to the other side which gave you -1. After than just need to divide -1 to both side, switch the > and you’ll get the answer! Hope the explanation makes sense.

7 0

2 years ago

Read 2 more answers

A line with a slope of -2 passes through the point (3-1). Which of the following is the equation of the line? (1) y=3x-2 (3) y=-

Inessa [10]

Answer:

y=-2x-1

Step-by-step explanation:

6 0

2 years ago

Solve the differential equation y prime equals the product of 2 times x and the square root of the quantity 1 minus y squared .

MatroZZZ [7]

Answer:

1. y = sin(x²+C)

2. see below

Step-by-step explanation:

1. $\frac{dy}{dx} = 2x\sqrt{1-y^2}$

separation of variables

$\frac{dy}{\sqrt{1-y^2} } = 2xdx$

integration both sides $\int\frac{dy}{\sqrt{1-y^2} } = \int2xdx$

you should get :

$sin^{-1} (y) = x^2+C$ remember constant of integration!!

2. y = sin(x²+C)

3 = sin(0+C)

y(0) = 3 does not have a solution because our sin graph is not shifted vertically or multiplied by a factor whose absolute value is greater than 1, so our range is [-1,1] and 3 is not part of this range

4 0

3 years ago