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solmaris [256]
3 years ago
10

What is the interquartile range (IQR) for the data set 14,15,17,19,20,23,26,30,32

Mathematics
2 answers:
natka813 [3]3 years ago
8 0

Answer:

12 ??

Step-by-step explanation:

LiRa [457]3 years ago
4 0

Answer:

12

Step-by-step explanation:

14, 15, 17, 19, 20, 23, 26, 30, 32

Median: 20

Lower quartile: 16

Upper quartile: 28

interquartile range: 28 - 16 = 12

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A food packet is dropped from a helicopter and is modeled by the function f(x) = −15x2 + 6000. The graph below shows the height
melisa1 [442]

General Idea:

Domain of a function means the values of x which will give a DEFINED output for the function.

Applying the concept:

Given that the x represent the time in seconds, f(x) represent the height of food packet.

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The height of the food packet cannot be a negative value, so

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-15x^2+6000\geq 0 \; \;  [Divide \; by\; -15\; on\; both\; sides]\\ \\ \frac{-15x^2}{-15} +\frac{6000}{-15} \leq \frac{0}{-15} \\ \\ x^2-400\leq 0\;[Factoring\;on\;left\;side]\\ \\ (x+200)(x-200)\leq 0

The possible solutions of the above inequality are given by the intervals (-\infty , -2], [-2,2], [2,\infty ). We need to pick test point from each possible solution interval and check whether that test point make the inequality (x+200)(x-200)\leq 0 true. Only the test point from the solution interval [-200, 200] make the inequality true.

The values of x which will make the above inequality TRUE is -200\leq x\leq 200

But we already know x should be positive, because time cannot be negative.

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<h3>How to calculate the percentage?</h3>

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Learn more about percentages on:

brainly.com/question/24877689

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