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
qwelly [4]
3 years ago
9

Listed below are the numbers of manatee deaths caused each year by collisions with watercraft. The data are listed in order for

each year of the past decade.
(a) Find the​ range, variance, and standard deviation of the data set.
(b) What important feature of the data is not revealed through the different measures of​ variation?

80 68 71 72 95 89 97 72 75 81
Mathematics
1 answer:
Ivan3 years ago
4 0

Answer:

Range = 29

Variance=   (X₁- U) ² / N= 973/10 = 97.3

Standard Deviation= √variance= √97.3=  9.864

Step-by-step explanation:

Range = Difference between the highest and lowest value = 97-68= 29

Variance

                  X₁                X₁-U               (X₁- U) ²              

                 80               0                     zero

                 68                -12                   144

                 71                 -9                     81

                 72                -8                     64

                 95                 15                    225                  

                89                  9                     81

                97                   17                   289

                72                    -8                 64

                75                     -5                 25

                81                     1                   1

∑              800                ZERO            973  

u=  ∑X₁ /10=800/10=80

Variance=   (X₁- U) ² / N= 973/10 = 97.3

Standard Deviation= √variance= √97.3=  9.864

(b) The important feature of the data is not revealed through the different measures of​ variation is that the variability of two or more than two sets of data cannot be compared unless a relative measure of dispersion is used .

You might be interested in
(-32ux+19u^2x^3-12u^6x^7) divided by (-4u^2x^3)
Serjik [45]

Answer:

\left(-32ux+19u^2x^3-12u^6x^7\right)\:divided\:by\:\left(-4u^2x^3\right)

Step-by-step explanation:

Factor the numerator and denominator and cancel the common factors.

\frac{8}{ux^2}\:-\frac{19}{4}+3u^4x^4

3 0
3 years ago
How do o solve this equation? 4(3x - 10) + 7 = 15
Rama09 [41]
X=4 because first u distruste and add the numbers then add 33 to both side
5 0
3 years ago
Read 2 more answers
Mean , median, mode of 3,5,7,2,3,7,9,2
jarptica [38.1K]
Mean= 4.75
Median= 4
Mode= 3,7, and 2
3 0
3 years ago
Can someone please help me out with this as ive tried to put everything to solve it but im still wrong.
tangare [24]
In an equilateral triangle all the sides are equal. This means that all the angles add up to 180 degrees.
Divide 180 by 3 and you get 60.
You want an exterior angle so you cut the angle in half ( it is now 30 )
Because the base and the line are parallel (form right angle if drew line connecting them) x is equal to
90-30=60
8 0
3 years ago
A student completes about 8 problems every 3 minutes. At this rate, how long will it take the student to complete 20 problems?
storchak [24]

Answer:

7

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • V = Πr 2 h what is the answer to this
    7·1 answer
  • PLEASE HELP!!!!! Giving away 50 points
    9·2 answers
  • A company sells artwork using a website. Information about the number of people that
    14·2 answers
  • Solve for x. X+ 2 1/5=5 3/5
    12·2 answers
  • Jorge has only dimes and nickels in his piggy bank. He has a total of 77 coins. The value of the coins is $6.95. Write and solve
    13·1 answer
  • Write an equivalent expression for (116)5.
    11·1 answer
  • Shia received a large package in the mail. What is a reasonable weight for the large package? A 20 grams B 36 pounds C 52 ML D 6
    12·1 answer
  • What is 0.3 percent as a fraction
    9·1 answer
  • Help with 9 please this is very hard i guess please help
    9·1 answer
  • Which of the following ratios are equivalent to 20% ? 5:15 , 1:5 , 2:5 , 3:12 , 4:20
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!