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
LUCKY_DIMON [66]
2 years ago
14

40 POINTS [Statistics] Distributions of sample ranges, means, and medians.

Mathematics
2 answers:
mrs_skeptik [129]2 years ago
8 0
The correct answer for this question is this one:

<span>1. Samples of size n = 150 are randomly selected from the U.S. census data, and the income range is found for each sample. What is the distribution of the sample ranges?

skewed to the right
normal (approximately)
<u>skewed to the left</u>
not enough information provided


2. Samples of size n = 60 are randomly selected from the population of numbers (0 through 9) produced by a random-number generator, and the mean is taken for each sample. What is the distribution of the sample means?

<u>normal (approximately)</u>
not enough information provided
skewed to the right
skewed to the left



3. Samples of size n = 250 are randomly selected from the U.S. census data, and the median income is found for each sample. What is the distribution of the sample medians?

normal (approximately)
not enough information provided
<u>skewed to the left</u>
skewed to the right</span>
Hope this helps answer your question and have a nice day ahead.
aleksandrvk [35]2 years ago
6 0

Answer:

Step-by-step explanation:Ranges are biased. Therefore normal distribution is not applicable.

Unbiased are mean, proportions and variance (skewed to the right). Never are we provided enough information for range and median. The answer is: not enough information.

Hence for both ranges and medians the correct answer is: not enough information. 1 and 3.

You might be interested in
Number of solutions to a system of equations algebraic. How many solutions does the system have? Can someone help me please....​
Svet_ta [14]

Answer:

A  Exactly 1 solution

Step-by-step explanation:

if we express both equations as y = mx+b

we will see that both equations have different slopes (i.e "m" values are different).

By definition, 2 straight lines of different slopes will intersect at only one location (i.e there is only one solution)

8 0
2 years ago
Read 2 more answers
SOLVE<br> 3x²-7x-12=0<br> correct answer to 2 decimal places
Bas_tet [7]

Is this what are you looking for??

5 0
3 years ago
A store manager receives a delivery of 2 boxes of light bulbs.Each box contains 25 lightbulbs.The store manager tests all the li
kolezko [41]

Answer:

Step-by-step explanation:

A delivery of 4 boxes will contain 2 more defective lightbulbs than a delivery of 2 boxes.

7 0
2 years ago
Yolanda purchased a prepaid phone card for $25 . Long distance calls cost 23 cents a minute using this card. Yolanda used her ca
Fynjy0 [20]
For 12 minutes because 23 x 12 is 2.76 and 25 minus 22.24 is 2.76
3 0
3 years ago
Which of the following is the solution to the system of equations?
drek231 [11]

Answer:

B (3/4,5/4)

Step-by-step explanation:

y = 2- x

\frac{5}{4}  = 2 -  \frac{3}{4}

y = 3x - 1

\frac{5}{4}  = 3 \times  \frac{3}{4}  - 1

\frac{5}{4}  =  \frac{9}{4}  -  \frac{4}{4}

Hope this helps ^-^

6 0
2 years ago
Other questions:
  • A scientist begins an experiment with a culture of 5 bacteria cells. Every hour, the number of bacteria cells triples. Which equ
    11·2 answers
  • N+ 8.7 = 16.2 <br><br> answer choices<br><br> 6.5<br> 7.5<br> 8.5<br> 24.9
    11·1 answer
  • The slope of a line is 5 /7. What is the slope of any line that is perpendicular to that line?
    7·1 answer
  • How many digits of pi does it take to add up to 14, 25, 68, 103, and 150? I am being timed, whoever answers this fast or quick I
    9·2 answers
  • Please answer Which value of x is a solution to this equation?
    15·1 answer
  • 5/3 divided by 4/9 is?
    5·2 answers
  • I need help on ( NUMBER 10 )!!
    11·2 answers
  • We are testing a new drug with potentially dangerous side effects to see if it is significantly better than the drug currently i
    6·1 answer
  • Bruno is a manager at a factory that makes in-line skates. The
    14·1 answer
  • What is the length of leg s of the triangle below? 45 √32 45° A. √4 B. 1.5 C. 16 ​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!