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
-BARSIC- [3]
3 years ago
7

Calculate the range, population variance, and population standard deviation for the following data set. If necessary, round to o

ne more decimal place than the largest number of decimal places given in the data. 2,3,4,5,6,7,8,9,10,11
Mathematics
1 answer:
Zarrin [17]3 years ago
5 0

Answer:

The range of the data is 9.0.

The population variance is 8.25.

The population standard deviation is 2.87.

Step-by-step explanation:

The data set is: S = {2, 3, 4, 5, 6, 7, 8, 9, 10, 11}

(A)

The range of a data set is the difference between the maximum and minimum value of the data set.

Compute range as follows:

Range=Max.-Min.=11-2=9

Thus, the range of the data is 9.0.

(B)

The formula to compute the population variance is:

Var=\frac{1}{n} \sum (x_{i}-\bar x)^{2}

Compute the mean of the data set:

\bar x=\frac{1}{n} \sum x_{i}\\=\frac{1}{10}(2+3+4+5+6+7+8+9+10+11)\\=6.5

Compute the variance as follows:

Var=\frac{1}{n} \sum (x_{i}-\bar x)^{2}\\=\frac{1}{10}[(2-6.5)^{2}+(3-6.5)^{2} +(4-6.5)^{2}+...(11-6.5)^{2}]\\=8.25

Thus, the population variance is 8.25.

(C)

The population standard deviation is:

SD=\sqrt{Var} = \sqrt{\frac{1}{n} \sum (x_{i}-\bar x)^{2}}

Compute the population standard deviation of the data set:

SD=\sqrt{Var} = \sqrt{8.25}=2.87

Thus, the population standard deviation is 2.87.

You might be interested in
What is the solution of StartFraction negative 8 Over 2 y minus 8 EndFraction = StartFraction 5 Over y + 4 EndFraction minus Sta
antiseptic1488 [7]

Answer:

  y = 6

Step-by-step explanation:

  \dfrac{-8}{2y-8}=\dfrac{5}{y+4}-\dfrac{7y+8}{y^2-16} \quad\text{given}\\\\\dfrac{-4(y+4)}{y^2-16}=\dfrac{5(y-4)}{y^2-16}-\dfrac{7y+8}{y^2-16} \quad\text{use common denominator}\\\\-4y-16=5y-20-7y-8 \quad\text{multiply by that denominator}\\\\12=2y \quad\text{add 4y+28}\\\\6=y \quad\text{divide by 2}

6 0
3 years ago
Read 2 more answers
Colton has a stone paperweight composed of a triangular pyramid on top of a triangular prism with the dimensions shown below. Us
Eva8 [605]

The area of the base would be found using the area of a triangle formula which is 1/2 x base x height.

The base and height are the two sides perpendicular to each other, which are both 5 inches.

The area of the base = 1/2 x 5 x 5 = 12.5 square inches.

The volume of the triangular prism is the area of the base times the height, which is 4 inches.

Volume of the triangular prism is 12.5 x 4 = 50 cubic inches.

Volume of the triangular prism is 1/3 x area of base x height, which is 7:

Volume of the triangular prism = 1/3 x 12.5 x 7 = 29.17 cubic inches.

Total volume = 29.17 + 50 = 79.17 cubic inches.

3 0
3 years ago
The graph of a function h is shown below find h(2).
Fantom [35]

Answer:

i cant really see it but i think the answer is 5

Step-by-step explanation:

when you look at the graph go to where x is 2 then keep going up and whatever point it hits thats the answer

3 0
2 years ago
What is a conversion factor that you can use to convert gallons to pints.How did you find it
swat32
To convert gallons to pints, multiply the gallons by 8. Since there are 4 quarts in a gallon and 2 pints in each quart, you multiply by 8 since 4*2 is 8.
5 0
3 years ago
Read 2 more answers
Ted and Robin each gave a basket of green apples to their friend Lily. Ted’s basket contains 5 apples, each weighing 7 1/4 ounce
AnnyKZ [126]
Robins basket is heavier.
Teds basket: 5x7.25=36.25
Robins basket: 6x6.25=37.5
37.5-36.25= 1.25
It is heavier by 1.25 ounces or 1 and 1/4 ounces
8 0
3 years ago
Other questions:
  • Can someone help me with # 5
    7·1 answer
  • Which line is perpendicular to the line whose equation is 5y + 6 = -3x?
    11·1 answer
  • 35% of what is 21??????
    5·2 answers
  • What would be the answer
    9·2 answers
  • The school, park and movie theater form a right triangle when shown on a map. The longest distance is between the school and the
    7·1 answer
  • What is the product of -3 and 5?
    15·1 answer
  • How many arches are in an equilateral triangle
    15·2 answers
  • In a survey of randomly selected 3,900 family-owned businesses with revenues exceeding $1 million a year, it was found that 1,91
    7·1 answer
  • Tina buys a briefcase online for 62.95. If shipping and handling are an additional 20% of the price, how much shipping and handl
    10·1 answer
  • If you answer these 2 questions then u like anime and i send u some pics! :)
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!