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]
4 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]4 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 I have three sides one of them is 44 degrees 28 degrees and 24 degrees what type of triangle am I
Inessa05 [86]

By angle, you're a scalene triangle, and by angle, youre an acute triangle

5 0
4 years ago
PLEASE HELP!! i dont understand it
andreev551 [17]

Answer:

 a.  y^ -1 = e^x    +2

Step-by-step explanation:

y = ln (x-2)

Exchange x and y

x = ln (y-2)

Solve for y

Raise each side with a base of e

e^ x = e^(ln(y-2)

e^x = y-2

Add 2 to each side

e^x  +2 =y

6 0
3 years ago
If the measure of the angle in the southwest corner of the intersection of Broadway and 21st Street is approximately 105ºwhat is
Karolina [17]

Answer:

95°

Step-by-step explanation:

The angle on the 20TH street and 22ND street must add up to 180° so the answer is 95°

5 0
3 years ago
in the following triangle, theta= 60. find the values of the angles B and B', which solve this ambiguous case
scZoUnD [109]
∠B + ∠B` = 180°
The Sine Law:
10 / sin B` = 9.2 / sin 60°
10 / sin B` = 9.2 / √3/2
sin B` = 0.94133
B` = sin^(-1) 0.94133
Answer:
C ) ∠B` = 109.73°, ∠B = 70.27°
8 0
4 years ago
Read 2 more answers
Plot the points - 5.5 and 3.5 on the number line. Then use the number line to show and find the distance between the two points.
Mkey [24]
0.5+1+1+1+1+1+1+1+1+0.5=9
5 0
3 years ago
Other questions:
  • Two sides of an isosceles triangle have lengths 7 and 14. Find the length of the third side.
    8·2 answers
  • Please help me on 18 - 20
    7·1 answer
  • Is 1.21221222122221 rational or irrational ?
    11·2 answers
  • Can someone help. Please
    14·1 answer
  • Slope of (2,3) and (-15,5)
    11·1 answer
  • Which of the following pair(s) of circles have /as a common internal tangent? Select all that apply.
    11·1 answer
  • Please help I will mark Brainly !!
    14·1 answer
  • Please help with this
    6·2 answers
  • Leonardo da Vinci's famous portrait the Mona Lisa is 30 in. long and 21 in. wide. Janelle has a refrigerator magnet of the paint
    14·2 answers
  • Where does -2 1/2 goes on the real number line​
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!