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
juin [17]
3 years ago
13

The heights of the trees for sale at two nurseries are shown below. Heights of trees at Yard Works in feet : 7, 9, 7, 12, 5 Heig

hts of trees at The Grow Station in feet : 9, 11, 6, 12, 7 Which statements are true regarding the measures of center and variability of these data sets? Check all that apply. The mean of tree heights at Yard Works is 7 feet. The mean of tree heights at Yard Works is 8 feet. The mean of tree heights at The Grow Station is 9 feet. The mean of tree heights at The Grow Station is 10 feet. The mean absolute deviations of the tree heights at both yards is 2. The mean absolute deviations of the tree heights at both yards is 3. Mark this and return Save and Exit
Mathematics
2 answers:
Troyanec [42]3 years ago
7 0

Answer:

The mean of tree heights at Yard Works is 8 feet and at Grow Station is 9 feet.The mean absolute deviation of the tree heights at both yards is 2.

Step-by-step explanation:

1). Height of the trees at Yard Works are = 7,9,7,12,5 feet

So mean height of the trees = (7+9+7+12+5)÷5

                                               = 40÷5 =8 feet

Standard deviation of the trees at Yard works = ∑(║(height of the tree-mean height of the tree))║/(number of trees)

(height of the tree-mean height of the tree)= ║(7-8)║+║(9-8)║+║(7-8)║+║(12-8)║+║(5-8)║ = (1)+1+(1)+4+(3)= 10

Therefore standard deviation = (10)/(5) =2

2). In the same way mean height of the trees at Grow Station=(9+11+6+12+7)/5= 45/5 = 9

Now we will calculate the mean deviation of the tress at Grow Station

= ∑║(height of the tree-mean height of the tree)║/(number of trees)

= ║(9-9)║+║(11-9)║+║(6-9)║+║(12-9)║+║(7-9)║/(5)

= (0+2+3+3+2)/5

= 10/5 =2

Therefore The mean of tree heights at Yard Works is 8 feet and at Grow Station is 9 feet.The mean absolute deviation of the tree heights at both yards is 2.

                                                             

Pavlova-9 [17]3 years ago
5 0
<span>The mean of tree heights at Yard Works is 8 feet.
The mean of tree heights at The Grow Station is 9 feet.
The mean absolute deviations of the tree heights at both yards is 2.

quizlet</span>
You might be interested in
Help with math problem​
trasher [3.6K]

Answer:

1.No- that just means that the numbers on that side are smaller

Step-by-step explanation:

5 0
3 years ago
Given the following sets.
laila [671]

B = {a, b, c, d}

C = {0, a, 2, b}

B ∪ C = {a, b, c, d, 0, 2}

<h3>Answer: E)</h3>

Everything from the set B and everything from the set C give to one set. Duplicated elements are written only once.

8 0
3 years ago
Read 2 more answers
If you are given the graph of a line and are asked to write the equation of a perpendicular line, does it matter what the y-inte
kogti [31]
Yes because the y intercept would be a different value for the new equation unless it is zero
5 0
3 years ago
The scores on a test are normally distributed with a mean of 78 and a standard deviation of 13. Find the score that is 2 standar
Veronika [31]

Answer:

52

Step-by-step explanation:

Given that :

Mean (m) = 78

Standard deviation (s) = 13

Score that is 2 standard deviations below the mean

Using the relation :

Zscore = (x - m) / s

2 standard deviations below the mean means a Zscore of - 2

Hence,

-2 = (x - 78) / 13

Cross multiply

-2 * 13 = x - 78

-26 = x - 78

x = - 26 + 78

x = 52

Score which is 2 standard deviations below the mean is 52

4 0
2 years ago
HELP I SUCK AT MATH!!!!AND IM FAILING STILL!!!!!
alukav5142 [94]

Answer:

y=x+1

Step-by-step explanation:

The slop and y-int are 1, just like on the graph

8 0
2 years ago
Read 2 more answers
Other questions:
  • Number sense. Eddie wanted to subtract 273 - 188. She began by finding 2-1. What did Edie do wrong?
    5·1 answer
  • When making pink paint, the art teacher uses the ratio 3:2. For every 3 cups of white paint she uses in the mixture, she needs t
    12·1 answer
  • Greta bought 3 lb and 4 oz of peanuts and shared 1 lb 12 oz with the class. what is the weight of the remaining peanuts ?
    14·1 answer
  • Write an expression where you multiply a decimal number by 100. Which direction and how many places does the decimal move?
    11·2 answers
  • 0.008 times what equals 0.08
    14·2 answers
  • A parallelogram has a base of 12 meters and a height of 1.5 meters. What is its area?
    12·1 answer
  • A lot of points for this...
    15·2 answers
  • What percent of a is b
    15·2 answers
  • Name A tangent please, due in an hour
    8·1 answer
  • Ray is making his reward winning lemonade recipe for a party he is comparison shopping for lemons at super pioneer supermarket h
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!