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3 years ago

What is the correct definition of the third quartile of a data set?

2 answers:

4 0

We know that

The third quartile (also called the upper quartile) has 75 percent of the data below it and the top 25 percent of the data above it. <span>The third quartile is the same as the </span>median<span> of the part of the data which is greater than the median.
</span>
therefore

the answer is the option
<span>C.) The third quartile is the median of the upper half of data in the data set.</span>

shutvik [7]3 years ago

4 0

<h2>Answer:</h2>

Option: C is the correct answer.

C. The third quartile is the median of the upper half of data in the data set.

<h2>Step-by-step explanation:</h2>

We know that our data is divided into three quartiles:

First quartile or lower quartile--

It is the median of the lower set of the data.

Middle quartile or Median--

Median is the central tendency of the data and it always exist in the middle of the data set.

Third quartile or upper quartile--

It is obtained by finding the median of the upper set of the data.

Hence, the answer is: Option: C

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*HELP PLEASE*

aksik [14]

If two events are disjoint (i.e. mutually exclusive) they cannot both occur and so we can determine probabilties by simple addition:

$P(AorB)=P(A)+P(B)$
$P(AorB)=\frac{40}{61}+\frac{2}{61}$
$P(AorB)=\frac{42}{61}$
$P(AorB)\approx 68.8\%$

A more complete answer would use a joint probability table but that's difficult to type out/format correctly here.

7 0

3 years ago

A triangle has a perimeter of 126 centimeters. The 2 longer sides are 3 times as long as the shortest side. Find the length of e

Vladimir [108]

The shorter side of the triangle is 18 cm and each of the longer sides are 54 cm

<u>Solution:</u>

Given that triangle has perimeter of 126 cm

Let the length of the shorter side of the triangle be "a"

The 2 longer sides are 3 times as long as the shortest side

So length of 2 longer sides = 3(length of the shorter side)

length of 2 longer sides = 3a

<em><u>The perimeter of triangle is given as:</u></em>

perimeter of triangle = length of the shorter side + length of 2 longer sides

perimeter of triangle = a + 3a + 3a

126 = a + 3a + 3a

7a = 126

a = 18

So length of shorter side = 18 cm

length of 2 longer sides are each = 3a = 3(18) = 54 cm

Thus, the shorter side of the triangle is 18 cm and each of the longer sides is 54 cm

4 0

3 years ago

The Ramos family wants to buy a Play Station 4 for $299.00, along with accessories and games. A wireless controller costs $44.99

Lilit [14]

Answer:

Part A: 299 + 45A + 30B + 50c

Part B: 569 (or 570 if you round it up)

Step-by-step explanation:

Part A:

Because there is no variable for the number of PlayStation 4s, let's assume that there is only one. That will be 299.

If A is the number of wireless controllers and each wireless controller is worth 45 dollars each, the price for the wireless controller(s) is 45A.

If B is the number of wireless controller charging stations and each wireless controller charging station cost 30 dollars, then the price of the wireless controller charging station(s) is 30B

If C is the number of games and each game cost 50 dollars, then the price of the game(s) is 50C

Put that all together, and we get 299 + 45A + 30B + 50c.

Part B:

Let's plug the numbers into the formula.

A = 2

B = 1

C = 3

$299 + 45A + 30B + 50c = 299 + 90 + 30 + 150 = 569\ dollars$

3 0

3 years ago

The average yearly salary of a lawyer is $26 thousand less than twice that of an architect. Combined, an architect and a lawye

Paha777 [63]

The architect earns $47000 yearly and the lawyer earns $68,000 yearly.

<h3>How to solve algebra problems?</h3>

Let x = salary of architect, in thousands

Let 2x - 26 be the salary of lawyer, in thousands

Thus, if their salary combined is $214 thousand, then we have the algebra expression;

2x + 2x - 26 = 214

4x - 26 = 214

4x = 214 - 26

4x = 188

x = 47, in thousands.

The architect earns $47000 yearly

The lawyer earns 2(47000) - 26000 = $68,000 yearly

Read more about Algebra Problems at; brainly.com/question/4344214

#SPJ1

5 0

2 years ago

Tina wants to build a garden in her backyard. She knows that the area of the section of the backyard she will be using is x^2-4x

Step2247 [10]

The area (A) of a rectangle is calculated by multiplying the length (L) and the width (W). In order for us to determine the possible dimensions of the section (or sides) of the rectangle, we have to factor the given area.
x² - 4x - 45
(x - 9)(x + 5)

<em>Thus, the possible dimensions of the rectangle are x-9 and x+5</em>.

3 0

3 years ago