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find the mean, range ,and median of these values 12,4,-2,0,9.-2,1,7,8,2 recall the range is calculated by finding the difference between the largest and smallest data values. hurry

Respuesta :

chestony
Put numbers in order
-2,-2,0,1,2,4,7,8,9,12
Mean add all the numbers = 39 divide 39 by the number of of numbers on the list which is 10. 39/10 = 3.9
Mean = 3.9
Range is the number of spots between -2 and 12 = 14
Range =14
Median is the middle number in the list there are two middle numbers 2 and 4. Add these together to get 6. Divide 6 by the number 2 because that is how many numbers you had to add. 6/2=3. The is not on the list but it is the average of the two terms.
Median =3
facundo3141592

We want to find the mean, range, and median of the given set.

The solutions are:

  • mean = 3.9
  • median = 3
  • range = 14

For a set of N elements {x₁, x₂, ..., xₙ} the mean is given as:

[tex]M = \frac{x_1 + x_2 + ... + x_n}{N}[/tex]

The range is the difference between the largest value and the smallest value, and the median is the "middle" value of the set.

The given set is:

{12,4,-2,0,9.-2,1,7,8,2}

We need to rewrite this from lest to greatest.

{-2, -2, 0, 1, 2, 4, 7, 8, 9, 12}

So we have 10 elements, because the number is even, the median will be given as the average of the two middle values, we will get:

m = (2 + 4)/2 = 3

The range is:

R = 12 - (-2) = 14

The mean is:

[tex]M = \frac{-2 -2+ 0+ 1+ 2+ 4+7+ 8+ 9+ 12}{10} = 3.9[/tex]

So we got all the things we wanted.

If you want to learn more, you can read:

https://brainly.com/question/17060266

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