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
Sedaia [141]
2 years ago
9

8. MAGAZINES You want to compare the number of words per sentence in a sports magazine to the number of words per sentence in a

political magazine.
a. The data represent random samples of 10 sentences in each magazine. Compare the samples using measures of center and variation. Can you use this to make a valid comparison about the magazines? Explain.
Sports magazine: 9, 21, 15, 14, 25, 26, 9, 19, 22, 30 Political magazine: 31, 22, 17, 5, 23, 15, 10, 20, 20, 17
Mathematics
2 answers:
igor_vitrenko [27]2 years ago
7 0

Answer:

I also don't know so I am sorry I need point

DENIUS [597]2 years ago
6 0

Answer:

On comparing the center i.e. mean we get that the sports magazine 19 uses more words than a political magazine 18 but they are almost the same because their difference is only 1. The variance of sports magazines 5.8 is greater than the variance of political magazines 5.2. We cannot use this to make a valid comparison about the magazines to a magazine the content matters or maybe the number of readers matters not the number of word count.

Step-by-step explanation:

Given: The number of words per sentence in a sports magazine to the number of words per sentence in a political magazine. The data represent random samples of 10 sentences in each magazine.

Sports magazine $$9,21,15,14,25,26,9,19,22,30$$.

Political magazine $$31,22,17,5,23,15,10,20,20,17$$.

To compare the samples using measures of center and variation.

  • Find the mean of both the data and compare them.
  • Find the variance of both the data and compare them.

Step 1 of 2

The mean of the words of sports magazine is \begin{aligned}(9+21+15+14+25+&26+9+19+22+30) \times \frac{1}{10} \\&=\frac{190}{10} \\&=19\end{aligned}

The mean of the words of the political magazine is \begin{aligned}&(31+22+17+5+23+15+10+20+20+17) \times \frac{1}{10}\\&=\frac{180}{10}\\&=18\end{aligned}

On comparing the center i.e. mean we get that the sports magazine uses more words than a political magazine.

Step 2 of 2

Variation of sports magazine is =\frac{1}{10}\times(|19-9|+|19-21|+|19-15|+|19-14|+|19-25|+|19-26|+|19-9|+|19-19|+|19-22|+|19-30|)$$\\ $$=\frac{1}{10}\times(10+2+4+5+6+7+10+0+3+11)$$\\$$=\frac{1}{10}\times58$$\\$$=5.8$$Variation of the political magazine is \end{tabular}

=\frac{1}{10}\times(|18-31|+|18-22|+|18-17|+|18-5|+|18-23|+|18-15|+|18-10|+|18-20|+|18-20|+|18-17|)$$\\ $$=\frac{1}{10}\times(13+4+1+13+5+3+8+2+2+1)$$\\ $$=\frac{52}{10}$$\\ $$=5.2$$

The variance of sports magazines is greater than the variance of political magazines.

We cannot use this to make a valid comparison about the magazines to a magazine the content matters or maybe the number of readers matters not the number of word count.

You might be interested in
How do I convert these improper fractions to mixed numbers: 29/4, 13/6, 73/9, 65/8, 17/2, 5/2, 25/4, 43/7, 29/4, 73/9, 19/3, 43/
slava [35]
Divide the numerator by the denominator 
use the answer as the whole number
use the remainder as the numerator
keep the deniminator

the answers: 
7  1/4
2   1/6
8  1/8
8  1/2
2  1/2
6  1/4
6  1/7
7  1/4 (same question)
8  1/8 (same question)
6  1/3
2  1/5
9  1/10
6  1/6

5 0
3 years ago
Read 2 more answers
Which fractions are greater than -5/16 ?
AlladinOne [14]
-5/16 

Our choices:-

A.-3/8
 
 
 B.-11/12
 
 
 C.-1/4
 
 
<span> D.-1/8
</span>
Let us get all of them with a LCD

-1*2 = -2
8*2 = 16

-2/16 is not bigger than -5/16

-11/12 is bigger than -5/16 because half of 16 is 8.

-1*4 = -4
4*4= 16

-4/16 is not bigger than -5/16

-1/8 is smaller than -5/16

Final answer: -11/12 is the only fraction bigger than -5/16

3 0
3 years ago
Read 2 more answers
HELP I NEED HELP ASAP
xenn [34]

I think is B

I added 12 on the ride

6 0
3 years ago
Read 2 more answers
Could you please help me with questions 36 &amp; 37?
Andrej [43]

We have to determine if the functions are linear or not.

We can do this by rearranging the equations in this form:

y=mx+b

where m and b are constants.

<em>NOTE: There are many ways to prove that a function is linear, but this is the easiest for this question. </em>

36.

\begin{gathered} x+\frac{1}{y}=7 \\ \frac{1}{y}=-x+7 \end{gathered}

As this function can not be written in the form y=mx+b, then it is not linear.

37.

\begin{gathered} \frac{x}{2}=10+\frac{2y}{3} \\ \frac{x}{2}-10=\frac{2y}{3} \\ \frac{2y}{3}=\frac{1}{2}x-10 \\ y=\frac{3}{2}(\frac{1}{2}x-10) \\ y=\frac{3}{4}x-15 \end{gathered}

This function is now in the form y=mx+b, where m=3/4 and b=-15. Then, this function is a linear function.

Answer:

36. Non-linear.

37. Linear.

8 0
1 year ago
Please help!!! Ella and Margaret were at a carnival. They each got a ticket for the Ferris wheel. Ella got a snow cone, and Marg
seraphim [82]

Answer:

(B) $5.25

Step-by-step explanation:

We can create an equation to represent this problem.

Let's assume f is the cost of a ferris wheel ticket, s is the cost of a snow cone, and c is the cost of a cotton candy.

We bought two ferris wheel tickets, one snow cone, and one cotton candy. After a discount of 6 dollars, the price was 12.75.

This makes the equation 2f + s + c - 6 = 12.75

Since we know the value of each ferris wheel ticket and the snow cone, we can simplify our equation by substituting in these values.

2(5) + 3.50 + c - 6 = 12.75\\\\10 + 3.50 + c - 6 = 12.75\\\\7.5 + c = 12.75

We can now subtract 7.5 from both sides to get the value of c, the cotton candy price.

7.5 + c - 7.5 = 12.75 - 7.5\\\\c = 5.25

So the cotton candy cost $5.25.

Hope this helped!

3 0
3 years ago
Read 2 more answers
Other questions:
  • The line plot shows the weights of all the fish caught on a fishing trip.
    11·2 answers
  • Ms.Franks drives a maximum of 150 miles per week to and from work. She works 5 days per week. Write an inequality that shows m t
    6·1 answer
  • Simplify the expression <br> Square root 24
    6·2 answers
  • Consider the line segment.
    9·1 answer
  • The time required for workers to produce each unit of a product decreases as the workers become more familiar with the productio
    13·1 answer
  • A company sells boxes of duck calls (d) for $35 and boxes of turkey calls (t) for $45. they make batches of duck calls that fill
    8·1 answer
  • A car has a mass of 1,200 kg. what is it's acceleration when the engine exerts a force of 600 N ? (formula: F= ma)
    5·2 answers
  • Which expression represents the calculation a (3x6)+5<br> B 6+(5x3) C 3+(6x5) D 3x(5+6)
    6·1 answer
  • Help Plss simply can u show step by step ?-4(8x-4)+3x
    10·1 answer
  • A baker has 20 pounds of sugar. He uses ⅜ of the sugar to bake cookies.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!