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
Burka [1]
3 years ago
6

Average Earnings of Workers The average earnings of year-round full-time workers 25–34 years old with a bachelor’s degree or hig

her were $58,500 in 2003. If the standard deviation is $11,200, what can you say about the percentage of these workers who earn?
a. Between $47.300 and $69,700?
b. More than $80.900?
c. How likely is it that someone earns more than $100,000?

Mathematics
1 answer:
beks73 [17]3 years ago
3 0

Answer:

a. 68% of the workers will earn between $47300 and $69700.

b. 2.5% of workers will earn above $89000

c. Approximately 0

Step-by-step explanation:

The standard normal distribution curve in the attached graph is used to solve this question.

a. The value $47300 is a standard deviation below the mean i.e. 58500-11200=47300. While $69700 is a standard deviation above the mean. I.e. 58500+12000=69700.

Between the first deviation below and above the mean, you have 34%+34%=68% of the salary earners within this range. So we have 68%of staffs earning within this range

b. The second standard deviation above the mean is $80900. i.e. 58500+11200+11200=$80900

We have 50%+13.5%+2.5%= 97.5% earning below $80900. Therefore, 100-97.5= 2.5% of the workers earn above this amount.

c. From the Standard Deviation Rule, the probability is only about (1 -0 .997) / 2 = 0.0015 that a normal value would be more than 3 standard deviations away from its mean in one direction or the other. The probability is only 0.0002 that a normal variable would be more than 3.5 standard deviations above its mean. Any more standard deviations than that, and we generally say the probability is approximately zero.

You might be interested in
Helppp<br> No links plzzz I’m way behind in classs
Basile [38]

Answer:

Step-by-step explanation:

option c is correct

if u change the divide sign into multiplication then always do its reciprocal.

4 0
3 years ago
Read 2 more answers
I need 0.0854 to the nearest hundredth. Is 0.08 to the nearest hundredth or is 0.09?
JulsSmile [24]
0.09 for sure!!!!!!!!!!!!!!!!!!!


8 0
3 years ago
Read 2 more answers
If 7 - 1 is 6 then what would it be if you multiply it by 11700 and subtract by 5000?
steposvetlana [31]

Answer: 65200

7 - 1 = 6 x 11700 = 70200 - 5000 = 65200

8 0
2 years ago
Find the value of x. No calculator needed. Leave the square root as a part of your answer.
aleksklad [387]

Answer:

5/V2=2.5×V2

Step-by-step explanation:

This is an isoscelle right triangle:

x²+x²=5²

2x²=5²

x=5/V2=5×V2/2=2.5×V2

where V2=sqrt(2)

4 0
3 years ago
1. What is the area of the shape?<br> 6cm<br> 4cm<br> 2cm<br> 3cm
Solnce55 [7]
Hello,
I’m not sure how to answer your question because looks like you forgot to put an image of the shape your talking about.
3 0
3 years ago
Other questions:
  • Are the two triangles similar? If so, state the reason and the similarity statement.
    10·2 answers
  • (.75/0.03-23.5)/1.5*2/3+7/6 <br>WILL GIVE BRAINLIEST PLEASE HELP QUICK
    14·1 answer
  • 107/16= what mixed fraction
    6·2 answers
  • I failed to use the cos and sin rule ​
    11·1 answer
  • Write an equation of the line passing through (1,3) and parallel to 2x+3y = -5
    5·1 answer
  • each yard of fabric costs $4.35. a table shows the number of yards if fabric and total cost of the fabric. which of the followin
    11·2 answers
  • Elizabeth uses 34.95 ounces of granola for 15 servings of trail mix. If each serving contains the same amount of granola, how mu
    12·1 answer
  • Evaluate the expression when x=1/3 y=-7/4<br><br> 3x+y
    5·1 answer
  • Carbon-14 has a half-life of approximately 5,730 years. This exponential decay can be modeled with the function N(t) = N0.
    9·1 answer
  • Use the five-step strategy for solving word problems to find the number described.
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!