What is the inter-quartile range of the given data set? 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25

15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25

separating into quartile (1/4)

15, 16, 17,

18, 19, 20,

21, 22, 23,

24, 25

1st quartile: 17

3rd quartile: 23

Interquartile = 3rd Q - 1st Q = 23 - 17

= 6

Hello!

First of all, we will want to find the median first. We have 11 values here, so we will want to find the 6th number in our data set to find the median. This median will cut our data in half.

15,16,17,18,19,20,21,22,23,24,25

To find the IQR, we need to find the median of each side of our data set now. We exclude the 20, and look for the median on each side. This would be the third number. This gives us our 1st and 3rd quartiles.

15,16,17,18,19,20,21,22,23,24,25

Now, to find the IQR, we subtract the first and third quartiles.

23-17=6

Therefore, our IQR is .

I hope this helps!

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step-by-step explanation:

answer: a video game has three difficulty levels: easy, medium, and expert. the game's scoring works in such a way that a player has to score a fixed number of points to advance to the next level, and then the scoring starts over. the total score needed to clear all three difficulty levels is 7,500. two times the number of points needed to clear the easy level is 500 more than the number of points needed to clear the medium level. twice the number of points needed to clear the medium difficulty level is 1,500 more than the number of points needed to clear the expert level. if x, y, and z represent the easy, medium, and expert levels, respectively, and a is the coefficient matrix of the system of equations modeling this situation, identify the inverse matrix, a-1, and the solution matrix, x, of the system of equations.

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rauschg

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