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
Leni [432]
3 years ago
12

The sales price of a single family house in Charlotte is normally distributed with mean $210,000 and standard deviation $35,000.

1. A random sample of 49 single-family houses in Charlotte is selected. Let X ¯ be the mean sales price of the sample. What is the mean of X ¯?
Mathematics
1 answer:
Lady_Fox [76]3 years ago
7 0

Answer:

E(X ¯)=210,000.

Step-by-step explanation:

A sampling distribution for samples of size n=49 from a population with means μ=210,000 and standard deviation σ=35,000, has the following means anda standard deviation:

\mu_s=\mu=210,000\\\\\sigma_s=\sigma/\sqrt{n}=35,000/\sqrt{49}=35,000/7=5,000

If X ¯ is the mean sales price of the sample, it will have a mean value of E(X ¯)=210,000.

You might be interested in
John has 66 socks, all in pairs. He has 1 more pair of white socks than black socks. How many individual socks of each color doe
kakasveta [241]

Answer:

Black socks 35

White socks 31

Step-by-step explanation:

6 0
3 years ago
URGENT! I need this answered today!
Grace [21]

Answer:

Volume : 420/2=210

Step-by-step explanation:

Volume Formula : Base x height x width

for a triangle 1/2 x 6 x 7 x10 =210

5 0
3 years ago
Read 2 more answers
Play the four digit 3,5,7,and 9 into the boxes pure in the position that would give the greatest results in the true numbers are
Bad White [126]
<h2>Answer:</h2>

- 9 3 x 7 5

<h2>Step-by-step explanation:</h2>

To get the combination that would yield the greatest result if the true number are multiplied,

<em>i. multiply each given combination</em>

73 x 95 = 6935

79 x 53 = 4187

97 x 35 = 3395

93 x 75 = 6975

<em>ii. get the largest result from the results calculated above in (i)</em>

The greatest of the results is 6975, therefore the digits should be placed like so;

<u> 9 </u>  <u> 3 </u>

<u> 7 </u>  <u> 5 </u>

<u />

<u />

8 0
3 years ago
Need to find the constant
evablogger [386]

time, t = 50

rate, r = 40

number of words, w

t = w/r

=》 50 = w/ 40

=》 w = 50 × 40 = 2000words

4 0
3 years ago
7. Simplify this what’s the answer?
trasher [3.6K]

first the square root of 4 is 2 so we can sub that in.

now we have 2(2*2)^-2.

2 * 2 of course is 4

with 2(4)^-2, keep in mind that negative exponents just mean to "flip" the number and turn the exponents positive.

so 4^-2 is the same as 1/4^2 or 1/16.

finally 1/16 * 2 = 2/16. 2/16 simplified is 1/8.

3 0
3 years ago
Other questions:
  • There are five boys and five girls in a class. The teacher randomly selects three different students to answer questions. The fi
    6·1 answer
  • Solve for y 7y - 6y - 10 = 13
    8·2 answers
  • What is the surface area of the prism<br> A. 180<br> B. 204<br> C. 120<br> D. 192
    9·1 answer
  • The domain of f(x) is {-1,0,2}. if f(x)=3x+2, what is the range
    14·1 answer
  • The Greenbaum family agreed to pay for 3 months of an online TV service in exchange for a $5 credit on the bill each month. If t
    15·2 answers
  • What is the midpoint of -3,4 and -3,-2
    12·1 answer
  • 3.75x - 5 - 8.75x + 4.5 + 0.5
    7·1 answer
  • On your paper, graph these coordinates:<br> (0, 1), (2, 5), (3,7)
    8·1 answer
  • Alright, everyone. I'm betting in a lot amount of points and I really need someone to help me out here. It would bring lots and
    6·1 answer
  • Classify each of the following lines as parallel, transversal or perpendicular.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!