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viva [34]
3 years ago
15

What is the third quartile of this data set? 20, 21, 24, 25, 28, 29, 35, 37, 42

Mathematics
1 answer:
nata0808 [166]3 years ago
6 0

Answer:

36

Step-by-step explanation:

⇒The question is on third quartile

⇒To find the third quartile we calculate the median of the upper half of the data

Arrange the data in an increasing order

20, 21, 24, 25, 28, 29, 35, 37, 42

Locate the median, the center value

<u>20, 21, 24, 25</u>, 28, <u>29, 35, 37, 42</u>

<u />

The values 20, 21, 24, 25 ------------lower half used in finding first quartile Q1

The value 28 is the median

The vlaues 29, 35, 37, 42...............upper half used in finding 3rd quartile Q3

Finding third quartile Q3= median of the upper half

upper half= 29,35,37,42

median =( 35+37)/2 = 36

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Step-by-step explanation:

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4) Slope

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The slope is zero as the line is a horizontal line (since both points have the same y-coordinate of 10).

5) Slope

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2 years ago
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Step-by-step explanation:

You need to remember the identity:

tan\alpha=\frac{opposite}{adjacent}

The inverse of the tangent function is arctangent. You need to use this to calculate the angle "R":

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Then, you get:

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Answer:

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