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
suter [353]
2 years ago
10

1. A teacher surveyed her class after they had taken a vocabulary test. Eighteen of the students claimed they had studied at lea

st one hour for the test. The remaining twelve students admitted that they had not studied for the test at all. The test results (expressed as a percent) for the two groups are shown below.
Studied: 87, 100, 94, 79, 92, 100, 95, 83, 89, 99, 100, 91, 89, 95, 100, 93, 96, 83
Did Not Study: 82, 72, 45, 91, 58, 83, 65, 87, 90, 77, 73, 89

What is the mean of the group that studied, rounded to the nearest tenth?



2. For the group that studied in Question #8...

Studied: 87, 100, 94, 79, 92, 100, 95, 83, 89, 99, 100, 91, 89, 95, 100, 93, 96, 83
Did Not Study: 82, 72, 45, 91, 58, 83, 65, 87, 90, 77, 73, 89

...what is the mean absolute deviation of the group, rounded to the nearest tenth?




3. How many of the scores (from the group that studied in Question #8)...

Studied: 87, 100, 94, 79, 92, 100, 95, 83, 89, 99, 100, 91, 89, 95, 100, 93, 96, 83
Did Not Study: 82, 72, 45, 91, 58, 83, 65, 87, 90, 77, 73, 89

...are within one mean absolute deviation of the mean? Which scores are within one mean absolute deviation of the mean? (Please show all work)



4. A teacher surveyed her class after they had taken a vocabulary test. Eighteen of the students claimed they had studied at least one hour for the test. The remaining twelve students admitted that they had not studied for the test at all. The test results (expressed as a percent) for the two groups are shown below.

Studied: 87, 100, 94, 79, 92, 100, 95, 83, 89, 99, 100, 91, 89, 95, 100, 93, 96, 83
Did Not Study: 82, 72, 45, 91, 58, 83, 65, 87, 90, 77, 73, 89

What is the mean of the group that did not study, rounded to the nearest tenth?





5. For the group that did not study in Question #11...

Studied: 87, 100, 94, 79, 92, 100, 95, 83, 89, 99, 100, 91, 89, 95, 100, 93, 96, 83
Did Not Study: 82, 72, 45, 91, 58, 83, 65, 87, 90, 77, 73, 89

...what is the mean absolute deviation of the group, rounded to the nearest tenth?



6. How many of the scores (from the group that did not study)...

Studied: 87, 100, 94, 79, 92, 100, 95, 83, 89, 99, 100, 91, 89, 95, 100, 93, 96, 83
Did Not Study: 82, 72, 45, 91, 58, 83, 65, 87, 90, 77, 73, 89

...are more than two mean absolute deviations from the mean? Which scores are more than two mean absolute deviations from the mean? (Please show all work)




AND WITH THE WRONG ANSWER WILL GET REPORTED ALSO WITH THE RIGHT ANSWER IS GETTING BRAINLIESS
Mathematics
2 answers:
ANEK [815]2 years ago
8 0

Answer:

1. studied: range-21

interquartile-10

did not: range-46

interquartile-19.5

2.The people who studied got closer grades to each other. This shows that those who didn't study had more variation in grades. So there if you don't study you have a bigger chance of failing than studying.

Step-by-step explanation:

i think this is the answer if wrong im sorry

GenaCL600 [577]2 years ago
6 0

Answer:

1. studied: range-21

                interquartile-10

  did not: range-46

               interquartile-19.5

2.The people who studied got closer grades to each other. This shows that those who didn't study had more variation in grades. So there if you don't study you have a bigger chance of failing than studying.

Step-by-step explanation:

You might be interested in
What is 2xy-3yz+5+2yz-xy
melomori [17]

To simplify this expression, we are going to combine like terms.


First, we can see that we have two terms with the variables xy being multiplied together, 2xy and -xy. Together, these add to xy, so our expression is now:

xy - 3yz + 5 + 2yz


We also have two terms with yz, -3yz and 2yz. Together, these add to -yz, so our expression is now:

xy - yz + 5


Our final expression is xy - yz + 5.

6 0
3 years ago
Choose the symbol that makes a true statement.<br><br> -3.8 _____ 0.1<br> &gt;<br> =
melomori [17]

Answer:0.1 is more than -3.8 so it would be >

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Find x. Please help with This problem!!!
Archy [21]

Step-by-step explanation:

7+2x-2 = 4x -3

5= 2x -3

2x = 8

x = 4

3 0
3 years ago
Please help!!!!<br> I'm being timed I will give Branly
lyudmila [28]

Answer:

11 X 34 then divide that by two which is 187

Step-by-step explanation:

4 0
3 years ago
Please help will mark brainly
yawa3891 [41]

Answer:

a. 2

Step-by-step explanation:

1/6 multiplied by 2 is 2/6

hope this helps :)

5 0
3 years ago
Other questions:
  • Find the midpoint of JK if J(-7. -5) and K(-3,7).
    11·1 answer
  • Indicate in standard form the equation of the line passing through the given point and having the given slope.. . C(0, 4), m = 0
    15·2 answers
  • Pls help with all of this idk how to do
    6·1 answer
  • Can I get help on 1-20 please
    6·1 answer
  • I say need help plz can u also add a formula?
    8·1 answer
  • Pls help! It has to be due by 5pm.
    11·2 answers
  • .................................................
    15·1 answer
  • HELPPP PLEASEEEEEEEEEEEEE
    13·2 answers
  • Solve for H <br> H=??????
    10·1 answer
  • Part B: In complete sentences, explain how a circle can be used to find the circumcenter of the triangle graphed below.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!