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
yulyashka [42]
3 years ago
13

A researcher randomly surveyed two separate age groups to determine the number of hours teens spend on the Internet each week. T

he results are shown in this table. 13- to 14-year-olds 12 8 7 8 9 6 7 7 9 10 15- to 16-year-olds 15 6 21 12 13 12 8 9 7 10 Based on these results, which conclusions can you draw about these two groups of teens? Select each correct answer.
A. On average, 15- to 16-year-olds spend a few hours more on the Internet each week compared to 13- to 14-year-olds.
B. On average, 15- to 16-year-olds spend a few hours less on the Internet each week compared to 13- to 14-year-olds.
C. On average, the two groups of teens spend about the same amount of time each week on the Internet.
D. The amount of time that 15- to 16-year-olds spend on the Internet each week is more variable than the amount time 13- to 14-year-olds spend.
E. The amount of time 15- to 16-year-olds spend on the Internet each week is less variable than the amount time 13- to 14-year-olds spend.
F. The amount of time that the two groups spend on the Internet each week varies by about the same amount.
Mathematics
2 answers:
Papessa [141]3 years ago
8 0
The answer to this is A.
MrRissso [65]3 years ago
3 0

Answer:

Option A and D.

Step-by-step explanation:

In this question the given table is of two separate age groups to determine the number of hours teens spent on the internet each week.

From the table

average hours spent by teens between the age of 13-14 years old

=  (12+8+7+8+9+6+7+7+9+10+15)/10 = 83/10 = 8.3 hours

average hours spent by teens between age of 15-16 years old

=(15+6+21+12+13+12+8+9+7+10)/10 = 113/10 = 11.3 hours

From these averages we can conclude

A) 15-16 year old spend a few hours more than 13-14 year old teens.

D. The amount that 15-16 year old teens spend on internet is more variable than the time spent by 13-14 years old.

Option A and D are the correct options.

You might be interested in
Marcus has 731 books he puts about the same number of books on each of nine shelves in his bookcase about how many books are on
kondaur [170]

Answer:

81.2222 or 81 with 2 left over

Step-by-step explanation:

731/9 = 81.2222

81.2222 rounded down = 81

9*81 = 729

731-729 = 2 left over

This is the third time I am answering the question.

5 0
3 years ago
A basketball player attempted 32 free throws and made 20. What is the ratio of free throws missed?
LenaWriter [7]
The answer is 12 because you have to subtract
 32-20
3 0
3 years ago
Read 2 more answers
During a company's first full year in business, the price of oil increased $50. In the second year of business, the price of oil
Nonamiya [84]

Answer:

Step-by-step explanation:

Um 150 x 2 divided by 4 i believe

6 0
3 years ago
a circle is centered at the point -3,2) and passes through the point (1,5). The radius of the circle is blank units. The point (
lianna [129]
It's important that you share the complete question.  What is your goal here?  Double check to ensure that you have copied the entire problem correctly.

The general equation of a circle is x^2 + y^2 = r^2.  Here we know that the circle passes thru two points:  (-3,2) and (1,5).  Given that a third point on the circle is (-7, ? ), find the y-coordinate of this third point.


Subst. the known values (of the first point) into this equation:  (-3)^2 + (2)^2 = r^2.  Then 9 + 4 = 13 = r^2.

Let's check this.  Assuming that the equation of this specific circle is 
x^2 + y^2 = r^2 = 13, the point (1,5) must satisfy it.

(1)^2 + (5)^2 = 13 is not true, unfortunately.

(1)^2 + (5)^2 = 1 + 25 = 26 (very different from 13).

Check the original problem.  If it's different from that which you have shared, share the correct version and come back here for further help.



3 0
2 years ago
What is 5 days 6 hours 20 minutes minus 3 days 8 hours 40 minutes
Svet_ta [14]
1 day    21 hours    40 minutes   is your answer
8 0
3 years ago
Other questions:
  • a circle is centered at (-4,9)and has a radius of 11. what is the equation of the circle. use x and y​
    11·1 answer
  • $121.50 for working 18 hour shift? unit rate
    6·1 answer
  • Look at the figure. If ∠1≡∠5, describe the relationship between lines a and b.
    8·2 answers
  • A man has 10 coins in his pocket, all of which are dimes and quarters. If the total value of his change is 175 cents, how many d
    6·2 answers
  • Sara received 1,000 points on Candy Crush for beating level 5. She then spent 1200 points on a power up.
    5·2 answers
  • H e l ppppppppppp
    6·2 answers
  • What are the steps in solving word problems involving multiplication of simple
    5·1 answer
  • Find the exact length of the third side.
    10·2 answers
  • Please Help! Please write a detailed explanation of how you got your answer!!! Please don't write fake answers just for points.
    5·2 answers
  • What is 0.02% written as a decimal?<br> A. 0.0002<br> B. 0.002<br> C. 0.02<br> D. 0.2
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!