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
MAXImum [283]
2 years ago
5

Suppose the average price for new cars in 2012 has a mean of $30,100 and a standard deviation of $5,600. Based on this informati

on, what interval of prices would we expect at least 89% of new car prices to fall within?
Mathematics
1 answer:
KatRina [158]2 years ago
3 0

Answer:

($13,300,$46,900)

Step-by-step explanation:

We are given the following in he question:

Mean, μ = $30,100

Standard Deviation, σ = $5,600

Chebyshev's Theorem:

  • According to  theorem atleast 1 - \dfrac{1}{k^2}  percent of data lies within 2 standard deviations of mean.
  • For k = 3,

1 -\dfrac{1}{(3)^2} = 0.889 \approx 89\%

Thus, 89% of data lies within three standard deviation of mean.

\mu - 3(\sigma) = 30100 - 3(5600) = 13300\\\mu + 3(\sigma) = 30100 + 3(5600) = 46900

Thus, we expect at least 89% of new car prices to fall within ($13,300,$46,900)

You might be interested in
Line f has a slope of -3. What is the slope of the line that is perpendicular to line f?
Fynjy0 [20]

Answer:

1/3

Step-by-step explanation:

slope of line f (m) = -3

Slope of perpendicular line to f m1 = -1/m = -1/-3 = 1/3

6 0
3 years ago
2/5 in Fraction form?
hram777 [196]

Answer:

2/5 is fraction form.

0.4 is decimal form btw.

5 0
2 years ago
If 7x - 4y = 23 and x + y = 8, what is the value of x?
Margaret [11]

Answer:

x=5

Step-by-step explanation:

7x - 4y = 23 and x + y = 8

Multiply the second equation by 4

4x + 4y = 32

Add this to the first equation

7x - 4y = 23

4x + 4y = 32

------------------------

11x    = 55

Divide each side by 11

11x/11 = 55/11

x = 5

8 0
3 years ago
Read 2 more answers
A man spent 15 minutes every day feeding the pigs. He spent 3 minutes less in the evening that he did after breakfast. For how m
Ierofanga [76]

15-3=12

12+h


Use this equation to help you solve.

8 0
3 years ago
Martin deposits $700 into a savings account that gains interest at a rate of 5.5% annually. If he waits 7 years to withdraw the
Travka [436]

。☆✼★ ━━━━━━━━━━━━━━  ☾  

Use the multiplier 1.055

final = original x multiplier^n

where 'n' is the number of years

Sub the values in

final = 700 x 1.055^7

final = 1018.27

Subtract the values:

1018.27 - 700 = 318.27

Thus, he earns more than $275

He earns $43.27 more

Have A Nice Day ❤    

Stay Brainly! ヅ    

- Ally ✧    

。☆✼★ ━━━━━━━━━━━━━━  ☾

4 0
3 years ago
Other questions:
  • A midsegment triangle ABC is parallel to a side of triangle ABC what is the missing statement in this proof
    15·1 answer
  • Jen Anderson takes out a mortgage for $120,000. This is a loan of 30 years at $500 per month. This gives a total interest cost o
    13·2 answers
  • a student claims that the inequality 3x+1>0 is always true because multiplying a number by 3 and then adding 1 to the result
    10·1 answer
  • If you change the sign of a point’s x -coordinate from positive to negative, how will the location of the point change?
    12·2 answers
  • A bedroom is 10 ft by 12 how much does it cost to wallpaper this room if the wallpaper costs 1.53 per ft?
    5·1 answer
  • HELP ITS TIMED WILL MARK BRAINLIEST!!<br><br> 16x^2+169=0
    12·1 answer
  • PLEASE ASAP THIS IS 7TH GRADE MATH SO ITS EASY
    12·1 answer
  • I really dont understand this stuff and i need answers asap. thank u
    5·1 answer
  • *15. Ana joins a gym that charges a $25 annual fee, plus $10 per month?
    15·1 answer
  • Solve by completing the square and hunt for twice the larger root. -9x+3=0
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!