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3 years ago

What is the interquartile range of this data set?

Mathematics

2 answers:

Sliva [168]3 years ago

8 0

Answer:

The answer is absolutely a) 6.

Step-by-step explanation:

I took the test

ad-work [718]3 years ago

5 0

Here, there are 10 numbers, first we have to range the numbers less to greater.

7 ; 8 ; 9 ; 10 ; 11 ; 12 ; 14 ; 15 ; 15 ; 16

$0.25*10=2.5$ so Q1 is the third term. Q1 = 9.

$0.75*10=7.5$ So Q3 is the 8th term. Q3 = 15.

$Q_{3} - Q_{1} = 15-9=6$

In short, interquartile range of this data set is 6 ( option A) ).

Hope this helps !

Photon

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3 years ago

Find the distance between the complex numbers. z1 = 9 - 9i z2 = 10 - 9i

steposvetlana [31]

Answer:

The distance between the two given complex numbers = 9

Step-by-step explanation:

Explanation:-

Step(i):-

Given Z₁ = 9 - 9 i and Z₂ = 10 -9 i

Let A and B represent complex numbers Z₁ and Z₂ respectively on the argand plane

⇒ A = Z₁ = x₁ +i y₁ = 9 - 9 i and

B = Z₂ = x₂+ i y₂ = 10 -9 i

Let (x₁ , y₁) = ( 9, -9)

(x₂, y₂) = (10, -9)

Step(ii):-

The distance between the two points are

A B = $\sqrt{(x_{2} - x_{1})^{2}+(y_{2} - y_{1})^{2} }$

A B = $\sqrt{(10 - 1)^{2}+(-9 - (-9))^{2} }$

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3 0

3 years ago

Solve 2x + 5y = –13. 3x – 4y = –8

disa [49]

If you would like to solve 2x + 5y = - 13 and 3x - 4y = -8, you can do this using the following steps:

2x + 5y = -13 /*4
3x - 4y = -8 /*5
_________________
8x + 20y = -52
15x - 20y = -40
_________________
8x + 15x + 20y - 20y = -52 - 40
23x = -92 /23
x = -92 / 23
x = -4

2x + 5y = -13
2 * (-4) + 5y = -13
-8 + 5y = -13
5y = -13 + 8
5y = -5
y = -1

(x, y) = (-4, -1)

The correct result would be D.) (-4, -1).

8 0

3 years ago

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