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
Sonja [21]
3 years ago
7

Find the​ range, variance, and standard deviation for the given sample data. Include appropriate units in the results.Listed bel

ow are the measured radiation absorption rates​ (in W/kg) corresponding to various cell phone models. If one of each model is measured for radiation and the results are used to find the measures of​ variation, are the results typical of the population of cell phones that are in​ use?0.950.950.730.730.630.630.910.911.321.321.481.480.630.631.231.230.910.911.411.410.670.67The range of the sample data isnothing▼​(Round to three decimal places as​ needed.)Sample standarddeviationequals=nothing▼kg.kg.left parenthesis Upper W divided by kg right parenthesis squared .W/kg2.W.W.Upper W divided by kg.W/kg.​(Round to three decimal places as​ needed.)Samplevarianceequals=nothing▼kg.kg.left parenthesis Upper W divided by kg right parenthesis squared .W/kg2.Upper W divided by kg.W/kg.W.W.​(Round to three decimal places as​ needed.)If one of each model is measured for radiation and the results are used to find the measures of​ variation, are the results typical of the population of cell phones that are in​ use?A.​No, because it is necessary to have at least 5 of each cell phone in order to get a meaningful result. Only including one of each cell phone model is not representative of each cell phone model.B.​Yes, because the results from any sample of cell phones will be typical of the population.C.​Yes, because each model is being represented in the sample. Any sample that considers all possible cell phone models will produce results typical of the population of cell phones.D.​No, because some models of cell phones will have a larger market share than others. Measures from different models should be weighted according to their size in the population.
Mathematics
1 answer:
timama [110]3 years ago
8 0

Answer:

D.​No, because some models of cell phones will have a larger market share than others. Measures from different models should be weighted according to their size in the population.

Step-by-step explanation:

(a) Range is the difference between the smallest and largest observation.

Here Smallest observation = 0.63

and Largest observation = 1.48

⇒ Range = 0.85

(b) Standard Deviation is calculate by,

Standard deviation(\sigma) = \sqrt{\frac{1}{n}\sum_{i=1}^{n}{(x_{i}-\bar{x})^{2}} }

where, \bar{x} is mean of the observation.

Here, Mean = 0.988

⇒ Standard Deviation = 0.313

(c) Variance is the square of Standard deviation.

Thus, Variance = (Standard Deviation)² = 0.098

(d) Here last option(D) is true i.e. ​No, because some models of cell phones will have a larger market share than others. Measures from different models should be weighted according to their size in the population.

You might be interested in
How to formulate 2 linear equations from word problems?
Aleks04 [339]
If the problem youre solving as the value of the x and y you can make those linear equations, however u can make them with only the x val
7 0
2 years ago
Henry is staining the wooden floor of a court. The court is in the shape of a rectangle. Its length is 54 feet and its width is
tensa zangetsu [6.8K]

Answer:

Henry would need 12 cans to cover the court

Step-by-step explanation:

1: 30 times 54 = 1620

2: 1620 divided by 135 = 12

8 0
3 years ago
4x+1=9+4y solve for y
koban [17]

Answer:

y = x-2

Step-by-step explanation:

6 0
3 years ago
Hope has 3 pencils, 5 pens, and 7 erasers. Which fraction represents the
densk [106]

Answer:

1/3

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
While sailing toward a​ statue, a sailor in a boat observed that at a certain​ point, the angle of elevation of the tip of the t
sveta [45]

Answer:

The answer is on this link:

https://www.slader.com/discussion/question/while-sailing-toward-the-statue-of-liberty-a-sailor-in-a-boat-observed-that-at-a-certain-point-the-a/

7 0
3 years ago
Other questions:
  • Adam earns 50p per kilo each can weighs 15g he earns £15 how many cans
    13·1 answer
  • The length of a rectangle 8 more than the width .the area is 513 square inches .find the length and width of the rectangle
    10·1 answer
  • Please help extra points help
    12·1 answer
  • Water goes over niagra falls at a rate of 180 million cubic feet every 1/2 hour. How much water goes over the falls in 1 minute?
    14·2 answers
  • Averages woman's brain: 1 3/10 kg (kilograms), 2 8/10 lbs (pounds), Average human heart, 3/10 kg, 7/10 lbs, What Is the total we
    10·1 answer
  • What is the measure of angle ONP?
    11·2 answers
  • What relationships exist between the figures on the coordinate grid below?
    13·1 answer
  • Dude is making 12 pounds of nut mixture with macadamia nuts and almonds. Macadamia nuts cost $9 per pound and almonds cost $5.25
    8·1 answer
  • WILL GIVE BRAINLIEST (EXAMS)
    7·2 answers
  • The function y= -2(x-2)^2+6 shows the daily profit (in hundreds of dollars) of a hot dog stand, where X is the price of a hot do
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!