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Evgen [1.6K]
3 years ago
5

What is the IQR (Inter Quartile Range) for the data set?

Mathematics
1 answer:
vladimir2022 [97]3 years ago
4 0
Arrange in ascending order:-

6 7 11 13 14 15 15 19 21


median = 14 
lower quartile  =  mean of 7 and 11 = 9
upper quatile =   mean of 15 and 19 = 17 

Interquartile range = 17 - 9 = 8

answer is 8

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Is 192 rational , why is it?
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Answer: 192 IS IRRATIONAL. I HOPE THIS ANSWER HELPS.

Step-by-step explanation:

It is an irrational number if it is not a perfect square. Since 192 is not a perfect square, it is an irrational number. This means that the answer to "the square root of 192?" will have an infinite number of decimals. The decimals will not terminate and you cannot make it into an exact fraction.

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A community service group organizes a car wash that raises 7c - 18 dollars and a spaghetti dinner that raises 6s - 45 dollars. W
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Step-by-step explanation:

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Combine like terms

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Step-by-step explanation:

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Answer:

W = 16

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Step-by-step explanation:

Represent trees with T and wreaths with W

Given

T = 3 + 4 * W

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Substitute 3 + 4 * W for T in the second equation

2*W + 3 + 4 * W = 99

2W + 3 + 4 W = 99

Collect Like Terms

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