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
densk [106]
3 years ago
15

I NEED THIS ASAP, PLEASE HELP!!!

Mathematics
1 answer:
WINSTONCH [101]3 years ago
7 0

Answer: 22.5 ; 5 ; 14

Step-by-step explanation:

Given the dataset:

{20,22,23,24,26,26,28,29,30}

The lower quartile (Q1) = 1/4(n + 1)th term

Where n = number of observations, n = 9

Q1 = 1/4 (9 + 1)th term

Q1 = 1/4(10) = 2.5

We average the 2nd and 3rd term:

(22 + 23) / 2

45 / 2 = 22.5

B) The interquartile range(IQR) of the dataset :

{62,63,64,65,67,68,68,68,69,74}

IQR = Q3 - Q1

The lower quartile (Q1) = 1/4(n + 1)th term

Where n = number of observations, n = 10

Q1 = 1/4 (10 + 1)th term

Q1 = 1/4(11) = 2.75 term

We take the average of the 2nd and 3rd term:

(63 + 64) / 2

45 / 2 = 63.5

The upper quartile (Q3) = 3/4(n + 1)th term

Where n = number of observations, n = 10

Q3 = 3/4 (10 + 1)th term

Q3 = 3/4(11) = 8.25 term

We take the average of the 8th and 9th term:

(68 + 69) / 2

137 / 2 = 68.5

IQR = Q3 - Q1

IQR = 68.5 - 63.5

IQR = 5

C) give the dataset :

{7,8,8,9,10,12,13,15,16}

The upper quartile (Q3) = 3/4(n + 1)th term

Where n = number of observations, n = 9

Q3 = 3/4 (9 + 1)th term

Q3 = 3/4(10) = 7.5 term

We take the average of the 7th and 8th term:

(13 + 15) / 2

28 / 2 = 14

You might be interested in
Rewrite the equation in slope intercept form:<br> X/3+y/5=1
svet-max [94.6K]

Answer:

y=-3/5x+5

hope this helps

7 0
3 years ago
20. Rewrite the following expression as a fraction times the variable.<br> -8a/9
Schach [20]

Answer:

-8a times 1/9

Step-by-step explanation:

This can be thought of as -8a/1 times 1/9. (1/9 is the reciprocal of 9, so were just pulling the fraction apart)

8 0
3 years ago
Find the general solution of the given differential equation. x2y' + xy = 8 y(x) = give the largest interval over which the gene
topjm [15]
x^2y'+xy=8
xy'+y=\dfrac8x
(xy)'=\dfrac8x\implies xy=8\ln|x|+C\implies y=\dfrac{8\ln|x|}x+\dfrac Cx

which wouldn't be a valid solution over any interval containing x=0.
5 0
3 years ago
2 boxes has 50 pieces of candy and the other 2 boxes have 20 pieces of candy. how could ivanna solve for,c, the total number of
Norma-Jean [14]
C= 50y+20x
Where y is the number of boxes holding 50 pieces each and x is the number of boxes holding 20 pieces each.
7 0
3 years ago
What is the difference between the number of solutions for a two-step equation and for a two-step inequality
Sophie [7]

Answer:

A two-step equation is something like:

A*X + B = C

In this case, like in a linear equation, we have only one solution that can be found as:

A*X = C - B

X = (C - B)/A

In the case of a two-step inequality, we have something like:

A*X + B > C

Solving this we get;

A*X >  C - B

X > (C - B)/A

In this case, any value of X that is larger than  (C - B)/A is a solution, so in this case, we have infinite solutions.

That is the difference between the number of solutions for each case, in a two-step equation we have only one, while in the case of the inequality we have infinite.

7 0
2 years ago
Other questions:
  • (14-8) × (15-4) <br> Use the order of operations to find the value of each expression
    8·1 answer
  • MRS SMITH HAS 12 times as many markers as colored pencil. The total number of markers and colored pencil is 78. How many markers
    7·2 answers
  • A hotel staff would like to create a circular flower bed for the hotel’s entrance. The flower bed will be enclosed by a border.
    10·2 answers
  • Hello can you please help me out on this question posted picture
    8·1 answer
  • Rosa is building a toolshed. She wants to check to see if it is square. She measured down one side 4 feet and down the adjacent
    12·1 answer
  • HELP!! BRAINLIEST ANSWER OFFERED!!!
    7·1 answer
  • Without using a calculator, fill in the blanks with two consecutive integers to complete the following inequality.
    13·1 answer
  • What is the average rate of change of the function on the interval from x = 0 to x = 5?
    13·2 answers
  • What is the slope and y-intercapt of the line 2x — 3y=9
    11·1 answer
  • 18.3: Sand Wagon
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!