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
Vsevolod [243]
3 years ago
9

Select the correct answer Which pair of statements correctly compares the two data sets? 11 12 9 10 13 6 8 4 5 7 3 0 2 1 : 00 .

. O 7 8 9 13 10 11 12 6 0 5 2 1 3 4 ОА. The difference of the means is 1. This value is less than half of the mean absolute deviation of either data set. OB. The difference of the means is 1. This value is more than half of the mean absolute deviation of either data set. OC. The difference of the means is 1. This value is 1 times the mean absolute deviation of either data set. OD. The difference of the means is 1. This value is 2 times the mean absolute deviation of either data set. Reset Next​
Mathematics
1 answer:
ANEK [815]3 years ago
4 0

Answer:

data set 1 : the mean is (1+2+4+4+5+5+6+7+9+9+9+11) / 12 = 72/12 = 6the MAD is :1 - 6 = -5....|-5| = 52 - 6 = -4....|-4| = 44 - 6 = -2...|-2| = 24 - 6 = -2...|-2| = 25 - 6 = -1...|-1| = 15 - 6 = -1...|-1| = 16 - 6 = 0 ...| 0| = 07 - 6 = 1....|1| = 19 - 6 = 3...|3| = 39 - 6 = 3...|3| = 39 - 6 = 3...|3| = 311 - 6 = 5...|5| = 5(5+4+2+2+1+1+0+1+3+3+3+5) / 12 = 30/12 = 2.5 <== the MAD2nd data set :the mean is (1+3+4+6+6+6+7+9+9+10+10+13) / 12 = 84/12 = 7mad is :1 - 7 = -6...| -6| = 63 - 7 = -4...|-4| = 44 - 7 = -3...|-3| = 36 - 7 = -1...|-1| = 16 - 7 = -1..|-1| = 16 - 7 = -1..|-1| = 17 - 7 = 0...|0| = 09 - 7 = 2...|2| = 29 - 7 = 2...|2| = 210 - 7 = 3..|3| = 310 - 7 = 3...|3| = 313 - 7 = 6...|6| = 6(6+4+3+1+1+1+0+2+2+3+3+6) / 12 = 32/12 = 2.67 <== the MADthe difference of the means is 1. This value is less then half of the mean absolute deviation of either data set. <== ur answer

Step-by-step explanation:

You might be interested in
which car can travel farther on 1 gallon of gas if blue car travels 18 2/5 miles using 0.8 gallons of gas and red car travels 17
Black_prince [1.1K]

Divide the miles by the gallons used for each car to find the miles per gallon, then compare them:

Blue car: 18 2/5 miles / 0.8 gallons = 23 miles per gallon.

Red car: 17 2/5 miles / 0.7 gallons = 24.86 miles per gallon.

The red car can travel farther on 1 gallon of gas.

8 0
2 years ago
Consider the case of a triangle with sides 5, 12, and the angle between them 90°.
Daniel [21]

Answer:

a) Applying Pithagoras Theorem

b) Trigonometric relations

c) No we can not

d) No we can not

e) See step-by-step explanation

f) See step-by-step-explanation

Step-by-step explanation:

a) The easiest method for calculating the missing side is applying Pithagoras Theorem

c²  =  a²  +  b²

c²  =  (5)²  +  (12)²      ⇒  c²  = 25 + 144    ⇒ c²  =  169    ⇒  c  = 13

b) The easiest method to find the missing angles, is to calculate the sin∠ and then look for arcsin fuction in tables.

sin ∠α = 5/13    sin ∠α = 0.3846    ⇒      arcsin (0.3846 )   α  = 23⁰

Now we can either get the other angle subtracting 180 - 90 - 23 = 67⁰

Or calculating sinβ = 12 /13    sinβ = 0.9230  arcsin(0.9230)   β = 67⁰

c) The law of cosines should not be applied to right triangles, in fact for instance in our particular case we have:

Question a)

c²  = a² + b² - 2*a*b*cos90⁰   (law of cosines ) but cos 90⁰ = 0

then c²  = a² + b² which is the expression for theorem of Pithagoras

In case you look for calculating the missing angles

c²  = a²  +  b²  - 2*5*13*cos α

169 = 25  +  144 - 2*5*13* cos α

As you can see 169 - 25 - 144 = 0

Then we can not  apply law of cosine in right triangles, we shoul apply trigonometric relations and Pithagoras theorem, and as we saw you can get the expression of Pithagoras theorem from cosine law

c²  =  a²  +  b²  - 2*a*b*cos∠90°    cos ∠ 90°  = 0

Then     c²  =  a²  +  b²

3 0
3 years ago
For which polygon is the sum of the interior angles equal to 720?
Free_Kalibri [48]
Answer: Hexagon

Explanation: Just trust me ;)
8 0
3 years ago
Read 2 more answers
Express 72 as a product of its prim factor​
kobusy [5.1K]

Answer:

2 x 2 x 2 x 3 x 3 = 72

6 0
2 years ago
Which of these numbers is divisible by 3<br><br> 24<br><br> 29<br><br> 16<br><br> 14
Rom4ik [11]
24 is divisible by three.
6 0
3 years ago
Read 2 more answers
Other questions:
  • Help me on 4. It is confusing and I can never get these type of answers right :(
    8·1 answer
  • John is creating a Thanksgiving display at the store where he works, using only canned pumpkin and canned green beans. He needs
    10·1 answer
  • A greenhouse manager knows, from experience, that the probability of a plant surviving the winter is 3/5 . If her greenhouse has
    15·2 answers
  • Jen needs to save $180 for a new camping tent. She is able to save $9 each week. How many weeks will Jen need to save to reach h
    8·1 answer
  • 13) BRAINLIEST &amp;10+ POINTS!
    13·1 answer
  • Please help me ASAP I’ll Mark Brainly
    9·2 answers
  • Describe what a graph of xs 1 would look like. (Be sure to include whether dot is open or closed and state
    10·1 answer
  • Alyssa needs 7 5/8 inches of ribbon for one project and
    14·2 answers
  • Complete the equation of the line through (-9,-9)(−9,−9)left parenthesis, minus, 9, comma, minus, 9, right parenthesis and (-6,0
    12·1 answer
  • Khalid carried water bottles to the field to share with his team at halftime. The water bottles weighed
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!