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
prisoha [69]
3 years ago
9

The number of books sold over the course of the four-day book fair were 190, 100, 272, and 74. Assume that samples of size 2 are

randomly selected with replacement from this population of four values. Identify the probability of each sample, and describe the sampling distribution of the sample means.
Mathematics
1 answer:
g100num [7]3 years ago
5 0

Answer:

the answer is below

Step-by-step explanation:

We have the total number of possible samples = 4 * 4 = 16 (As 4 choices for each value)

in addition we have to as all sample occur with equal probability, probability of each sample = 1/16, below is samling distribution of mean

x1 x2 probabilityP(x1,x2) sample mean

190 190    1/16                 190

190 100    1/16                 145

190 272    1/16                 231

190 74    1/16                 132

100 190    1/16                 145

100 100    1/16                 100

100 272    1/16                 186

100 74    1/16                        87

272 190    1/16                 231

272 100    1/16                 186

272 272    1/16                 272

272 74    1/16                 173

74 190    1/16                 132

74 100    1/16                 87

74 272    1/16                 173

74 74    1/16                 74

Summarizing above with adding duplicate values

sample mean   probability

       74              1/16

      87               1/8

    100                1/16

    132                1/8

    145                1/8

    173                1/8

   186                1/8

   190               1/16

    231               1/8

   272               1/16

You might be interested in
If 3x - 6y = 8, then x - 2y =
Fiesta28 [93]

Answer:

8/3 or 2.6666

Step-by-step explanation:

You have divided the first equation by 3 -- all except the 8. So you must divide the 8 by 3 giving you 8/3 which is 2 2/3 or 2.66666

Answer (x - 2y) = 8/3

8 0
3 years ago
Read 2 more answers
Andrew micheal anderson istg if u dont answer my s n a p-
Vera_Pavlovna [14]

Step-by-step explanation:

He won't answer you.

HAHAHAVSAHSSSBDJSIDNFKSNDODHSNDODDJ

3 0
2 years ago
Read 2 more answers
Can someone explain me how to solve this?
sesenic [268]

Answer:

X=12

Step-by-step explanation:

since it is an isosceles triangle opposite sides are congruent which means 7x+24=13x-48 you then would need to subtract either the whole numbers or the variables from each side so add 48 on each side it equals to 7x+72=13x then subtract 7x from 13x and you get 72=6x divide both sides 6/6=x, 72/6 Therefore x=12 HOPE that helped mark me brainiest pls

3 0
2 years ago
Read 2 more answers
10, 12, 16, 18, 18,20, 20, 24, 28 what is the greatest variability?
Andrei [34K]
I think 28 i'm not sure
8 0
2 years ago
At what points on the graph of f(x)=2x^3-6x^2-27x is the slope of the tangent line -9?
Dmitriy789 [7]

Answer:

(-1, 19) and (3, -81)

Step-by-step explanation:

f(x) = 2x³ − 6x² − 27x

f'(x) = 6x² − 12x − 27

-9 = 6x² − 12x − 27

0 = 6x² − 12x − 18

0 = x² − 2x − 3

0 = (x + 1) (x − 3)

x = -1 or 3

f(-1) = 19

f(3) = -81

The points are (-1, 19) and (3, -81).

4 0
3 years ago
Other questions:
  • What number must be subtracted from -5 for the difference to be -2. Explain your answer.​
    7·1 answer
  • Evaluate f(9) given f(x)=-x+7
    11·1 answer
  • What is the equation of the line that is perpendicular to y = -2/3x + 4 and that passes through (–2,–2)?
    12·1 answer
  • Using the order of operations, what is the last calculation that should be done to evaluate 4(8 - 6)5² - 6 ÷ (–3)?
    12·2 answers
  • Please help me with this on the image
    6·1 answer
  • ASAP- What does it mean to add less than nothing to something
    10·1 answer
  • Determine the intercepts of the line.<br><br> y-intercept:<br><br> x-intercept:
    7·1 answer
  • 5. Are x and y proportional? Explain Pls helppp me <br> 30 POINTS!!
    11·2 answers
  • A ladder is 4 feet and 1 inch tall. How tall is it in inches
    9·2 answers
  • A variable is normally distributed with mean 23 and standard deviation 4. Use your graphing calculator to find each of the follo
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!