1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
White raven [17]
3 years ago
15

HELP!!!!! If anyone knows the answer please tell me as soon as possible!! PLEASE!!!!

Mathematics
1 answer:
Anon25 [30]3 years ago
8 0
Trapezoid, plot the points down on a graph
You might be interested in
Consider a sample with data values of 27, 24, 21, 16, 30, 33, 28, and 24. Compute the 20th, 25th, 65th, and 75th percentiles. 20
densk [106]

Answer:

P_{20} = 20 --- 20th percentile

P_{25} = 21.75  --- 25th percentile

P_{65} = 27.85   --- 65th percentile

P_{75} = 29.5   --- 75th percentile

Step-by-step explanation:

Given

27, 24, 21, 16, 30, 33, 28, and 24.

N = 8

First, arrange the data in ascending order:

Arranged data: 16, 21, 24, 24, 27, 28, 30, 33

Solving (a): The 20th percentile

This is calculated as:

P_{20} = 20 * \frac{N +1}{100}

P_{20} = 20 * \frac{8 +1}{100}

P_{20} = 20 * \frac{9}{100}

P_{20} = \frac{20 * 9}{100}

P_{20} = \frac{180}{100}

P_{20} = 1.8th\ item

This is then calculated as:

P_{20} = 1st\ Item +0.8(2nd\ Item - 1st\ Item)

P_{20} = 16 + 0.8*(21 - 16)

P_{20} = 16 + 0.8*5

P_{20} = 16 + 4

P_{20} = 20

Solving (b): The 25th percentile

This is calculated as:

P_{25} = 25 * \frac{N +1}{100}

P_{25} = 25 * \frac{8 +1}{100}

P_{25} = 25 * \frac{9}{100}

P_{25} = \frac{25 * 9}{100}

P_{25} = \frac{225}{100}

P_{25} = 2.25\ th

This is then calculated as:

P_{25} = 2nd\ item + 0.25(3rd\ item-2nd\ item)

P_{25} = 21 + 0.25(24-21)

P_{25} = 21 + 0.25(3)

P_{25} = 21 + 0.75

P_{25} = 21.75

Solving (c): The 65th percentile

This is calculated as:

P_{65} = 65 * \frac{N +1}{100}

P_{65} = 65 * \frac{8 +1}{100}

P_{65} = 65 * \frac{9}{100}

P_{65} = \frac{65 * 9}{100}

P_{65} = \frac{585}{100}

P_{65} = 5.85\th

This is then calculated as:

P_{65} = 5th + 0.85(6th - 5th)

P_{65} = 27 + 0.85(28 - 27)

P_{65} = 27 + 0.85(1)

P_{65} = 27 + 0.85

P_{65} = 27.85

Solving (d): The 75th percentile

This is calculated as:

P_{75} = 75 * \frac{N +1}{100}

P_{75} = 75 * \frac{8 +1}{100}

P_{75} = 75 * \frac{9}{100}

P_{75} = \frac{75 * 9}{100}

P_{75} = \frac{675}{100}

P_{75} = 6.75th

This is then calculated as:

P_{75} = 6th + 0.75(7th - 6th)

P_{75} = 28 + 0.75(30- 28)

P_{75} = 28 + 0.75(2)

P_{75} = 28 + 1.5

P_{75} = 29.5

7 0
3 years ago
What can the reader study to most directly determine the theme of a poem?
harina [27]
The answer will be C. Theme basically means the message of a story.
6 0
3 years ago
Read 2 more answers
Henry used square papers, each measuring 1 square unit, to tile a rectangle with no gaps or overlaps. He sketched his work as sh
Illusion [34]

Answer:

If you give me the image and what the question is then I will be happy to try and help you in the comments!

Step-by-step explanation:

3 0
3 years ago
Whats the difference of 1cm and 1cm2
Natali5045456 [20]
1 cm is regular

but 1 cm 2

means that you multiply 1 by 1 which is 1

for example if you have 15cm 2 you would multiply 15 by 15 and get 225

and 15 cm 3 would be 15*15*15 and you would get 3375
7 0
3 years ago
Please help I have no idea how to answer this question
mr_godi [17]

Answer:

n = 3

Step-by-step explanation:

plug in 3 for n in the equation:

Numerator: n + 1 = 3 + 1 = 4

Denominator: 2^n = 2^3 = 2 * 2 * 2 = 4 * 2 = 8

Simplify the fraction. Divide common factors from both the numerator and denominator:

(4/8)/(4/4) = 1/2

1/2 = 1/2 ∴ n = 3

~

5 0
2 years ago
Other questions:
  • Peter makes $7000 a month plus some money by commission rates. He gets 6% of everything he sells. If peter sold $55000 worth of
    10·1 answer
  • What is the correlation coefficient with the following data points: (1,14), (3,10), (5,16)
    12·2 answers
  • Simplify it.<br>2(3-4y)​
    7·2 answers
  • An item is regularly priced at $15. It is now priced at a discount of 75% off regular price
    5·2 answers
  • 6 pt = 12 c<br> is it true or false???
    13·1 answer
  • Someone please help I’m having trouble
    12·1 answer
  • Can someone help me please?
    15·1 answer
  • Match the terms to their definition. 1. part-whole ratio a ratio comparing a portion of a whole quantity to the whole quantity 2
    6·1 answer
  • Which graph should Mr.Salinas use to presentation to the city council and why?
    9·1 answer
  • Shaun is building a fence around his yard.The dimensions of the area he is fencing is 20.5 yd by 11.25 yd. Shaun has calculated
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!