Maria wants to know if the number of words on a page in her earth science book is generally more than the number of words on a page in her math book. She takes a random sample of 25 pages in each book, then calculates the mean, median, and mean absolute deviation for the 25 samples of each book.

Mean Median Mean Absolute Deviation
Earth science 48.9 41 9.2
Math 34.5 44 1.9
She claims that because the mean number of words on each page in the earth science book is greater than the mean number of words on each page in the math book, the earth science book has more words per page. Based on the data, is this a valid inference?

Answers

Answer 1

Answer:

No, because there is a lot of variability in the earth science book data.

Step-by-step explanation:

I just took the test and the explanation is that the earth book has more pages and more variability so that is why her answer is wrong.

Answer 2

Answer:

No, because there is a lot of variability in the earth science book data.

Step-by-step explanation:

Related Questions

a bus accelerates from 2 m/s to 10 m/s in 5 seconds. What was its average acceleration?

Please Help

Answers

Answer:

I believe the answer is 4. Please correct me if I’m wrong.

Step-by-step explanation:

Answer: 1.6 m/s^2

================================================

Work Shown:

A = old velocity = 2 m/s

B = new velocity = 10 m/s

C = change in time = 5 seconds

D = average acceleration

D = (change in velocity)/(change in time)

D = (B-A)/C

D = (10-2)/5

D = 8/5

D = 1.6 m/s^2

The acceleration 1.6 m/s^2 means that the velocity is increasing by 1.6 m/s for every second.

1
Problem
Which of the following demonstrates the distributive property? (5
pts)
a) 7 + (-7)= 0
b) 3+ 4 = 4 + 3
c) -5(x - 2) = -10x +10
d) (3x + 8) + 4 = 3x + (8 + 4)

Answers

C is an example of distribution property

solve x + 5 = 11 help me please

Answers

The answer to the question is x=6

Answer:

x = 6

Step-by-step explanation:

Given

x + 5 = 11 ( isolate x by subtracting 5 from both sides )

x = 11 - 5 = 6

Question 4 of 10 The slope of the line below is - 2. Use the coordinates of the labeled point to find a point-slope equation of the line. (4,-6)

Answers

Answer:

y = -2x + 2

Step-by-step explanation:

what is 2x - y = 3 solve for y

Answers

Answer:

y= -3 + 2x

Step-by-step explanation:

Write down the gradient of the line
(1 Point)
y=1/2x

Answers

Answer:

[tex]\frac{1}{2}[/tex]

Step-by-step explanation:

The equation of a line in point- slope form is

y = mx + c ( m is the slope ( gradient ), c is the y- intercept )

y = [tex]\frac{1}{2}[/tex] x ← is in point- slope firm

with gradient = [tex]\frac{1}{2}[/tex]

The scale on a drawing is 2:in:5yd. If a length on the drawing is 6 inches, what is the actual length.

Answers

Answer:

15 yards

Step-by-step explanation:

proportion:

2/5:6/X

2x=30

x=15

need help quickly! please

Answers

Answer:

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Step-by-step explanation:

Michael bought a guitar that was on sale for 15% off the regular price of $200. The total cost included 8% sales tax. What was the total cost?

Answers

Answer:

$183.60

Step-by-step explanation:

Take the regular price and find the 15% discount:

200 x 0.15 = 30

Subtract the discounted amount from the original price:

200 - 30 = 170

Take the new price and find the sales tax:

170 x 0.08 = 13.60

Add the sales tax to the discounted price:

170 + 13.60 = 183.60

Element X is a radioactive isotope such that every 13 years, its mass decreases by half. Given that the initial mass of a sample of Element X is 60 grams, how much of the element would remain after 30 years, to the nearest whole number?

Answers

Answer:

2,325 grams !

Step-by-step explanation:

which shape has diagonals that bisect each other but not at 90 degrees?

Answers

It’s 35 right angle

What is the maximum of the sinusoidal function?

Answers

Answer: 2

Step-by-step explanation:

Solve by factoring.
s2 + 8s + 15 = 0

Answers

(s + 5) (s + 3)
s = -5, -3

Find the angle of w please

Answers

it’s 136 because...

68+68= 136

Solve the proportion: 1/4 = x/20

Answers

Answer:

5x?

Step-by-step explanation:

Answer:

= 5

Step-by-step explanation:

Multiply all terms by the same value to eliminate fraction denominators

1/4 = x/20

20 ⋅ 1/4 = 20 ⋅ /20

Simplify

= 5

Which of the following employees derives their income from a fee for the items sold?
a commission
b. piece rate
c.salaried
d. tip

Please select the best answer from the choices provided

Answers

Answer: commission

Step-by-step explanation:

If the area of a rectangle is x2 – 13x + 40, what are the lengths of
the two sides?

Answers

Answer:

5 and 8

Step-by-step explanation:

quadratic formula.

-(b)+sqrt(b)^2-4(a)(c)

^ans

divide the whole thing by 2(a).

If the formula isn't clear, search quadratic formula up.

A scale drawing of Julie's living room is shown below:
width = 6 cm
length = 8 cm
If each 2 om on the scale drawing equals 4 feet, what are the actual dimensions of the ro
O Length = 16 feet, width = 12 feet
Length = 10 feet width = 8 feet
O Length = 32 feet, width = 24 feet
Length = 14 feet, width = 12 feet

Answers

Answer:

length = 16 feet

width = 12 feet

Step-by-step explanation:

divide the length and width by 2 so you get 3 and 4. then you proceed to Multiply both by 4 and you get 12 and 16

6÷2 = 3

8÷2 = 4

3x4= 12

4x4 = 16

Write the equation of the line that passes through the points (7, -9) and
(2, -7). Put your answer in fully reduced point-slope form, unless it is a
vertical or horizontal line.

Answers

Answer:

y + 9 = -2/5(x - 7)

Bill is h cm tall. Sienna is 4 cm taller than Bill. What is the expression in terms of h for sienna height in centimeters.

Answers

The expression in terms of h for siennas height would be h+4 because sienna is 4 cms taller than bill and bills height is equal to h

It’s 4 the question said it

Help please I’m confused! Easy 10 points closer picture then last time

Answers

Slope intercept form is y = mx + b

So the slope intercept form for -5 and 2 is
y = 2x - 5

It would be this because the mx represents the slope and the b represents the y intercept so all you have to do is plug in the numbers.

A box of chocolate cost $24.99 Plus 7% tax. What is the final price for the box of chocolates??

Answers

Answer:

$26.74

Step-by-step explanation:

24.99 x .07= 1.7493

24.99+1.7493= 26.7393

Round to nearest cent

$26.74

BRAINLIEST PLZZ :)

In ΔRST, t = 9.5 inches, ∠R=149° and ∠S=12°. Find the length of r, to the nearest 10th of an inch.

Answers

Answer:

Step-by-step explanation:

Its right bro trust me

ILL GIVE BRAINLIEST AND EVERYTHING ELSEEE HELP

Answers

Answer:

3x+18

Step-by-step explanation:

multiply it out to get 3x+18

Answer:

Hola!

RESPUESTA =3x+18

Step-by-step explanation:

0.2(3b - 15c)
plz help me

Answers

Answer:

if you meant to simplify here you go

Step-by-step explanation:

0.2(3b - 15c)=

0.2(3b)+0.2(−15c)=

0.6b−3c

Answer:

0.6b-3c

Explination:

0.2(3b - 15c)

we can use dispributive property because of the parentheses

by distributing 0.2 to 3b and -15c

we get 0.6b and -3c

you could be thinking why did the numbers shrink?

the numbers decrease because every time you multiply by a decimal the number decreases

High Hopes

Barry-

No Solutions 2x + 5 + 2x + 3x = One Solution 2x+5+ 2x + 3x = Infinitely Many Solutions 2x + 5 + 2x + 3x =

Answers

Answer:

2x+5+2x +3x=7x+5 2x +5+ 2x + 3x = 7x+5

Step-by-step explanation:

Air Jordans cost the Nike Corporation $25 to manufacture in a factory.

A. The cost of the shoes is marked up 760% to obtain the retail price. What is the retail price?

B. You have a coupon for 20% off the retail price of a pair of Air Jordans. If there is a 6% sales tax, what is the final price to buy these shoes?

C. The retail price used to be $125 many years ago. What is the percent of increase from the former retail price to its current retail price (from your answer to part A)?

Answers

Answer:

n4ur84234r

Step-by-step explanation:

3874rfbh dc

What Association is for a persons IQ

Answers

Answer:

association is completed

Step-by-step explanation:

paturo

HI PLASE HELP -3x-4<5

Answers

Answer:

-3

Step-by-step explanation:

-3x - 4 < 5

-3x < 9

x < -3

Which rule explains why these triangles are congruent?

SSS
SAS
AAS
ASA
THESE TRIANGLES CANNOT BE PROVEN CONGRUENT

Answers

AAS

(20 characters minimum)

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