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
exis [7]
2 years ago
11

Help me please again lol

Mathematics
1 answer:
olasank [31]2 years ago
3 0
<h3>✎ Answer:</h3>

Option B is your answer

✄--------------

Min=2

Q1=4

Median=6

Q3=8

Maximum=11

<h3>❆❆❆❆❆❆❆❆❆❆❆</h3><h3>hope it helps..</h3><h3>have a great day!!</h3>

You might be interested in
ashley spends $12 to buy 3 pencils and 6 rulers. Jack spends $8 to buy 5 pencils and 2 rulers. what is the cost of 2 pencils and
Sveta_85 [38]

Answer:

$ 3 left ashley money

$ 1 left  jacks money

$ 8 left ashley money

$ 4 left jacks money

Step-by-step explanation

3 pencils + 6 rulers = 12 - 9 = 3

5 pencils +  2 rulers = 8 - 7 = 1

12 - 4 = 8

8 - 4 = 4

6 0
3 years ago
Read 2 more answers
Which of the following is the measure of ZAXY if ray x bisects ZAXB,
weqwewe [10]

Answer:

55

Step-by-step explanation:

bisect means to cut in half so it is half of 110 so it is 55

6 0
3 years ago
Read 2 more answers
Let X1,X2......X7 denote a random sample from a population having mean μ and variance σ. Consider the following estimators of μ:
Viefleur [7K]

Answer:

a) In order to check if an estimator is unbiased we need to check this condition:

E(\theta) = \mu

And we can find the expected value of each estimator like this:

E(\theta_1 ) = \frac{1}{7} E(X_1 +X_2 +... +X_7) = \frac{1}{7} [E(X_1) +E(X_2) +....+E(X_7)]= \frac{1}{7} 7\mu= \mu

So then we conclude that \theta_1 is unbiased.

For the second estimator we have this:

E(\theta_2) = \frac{1}{2} [2E(X_1) -E(X_3) +E(X_5)]=\frac{1}{2} [2\mu -\mu +\mu] = \frac{1}{2} [2\mu]= \mu

And then we conclude that \theta_2 is unbiaed too.

b) For this case first we need to find the variance of each estimator:

Var(\theta_1) = \frac{1}{49} (Var(X_1) +...+Var(X_7))= \frac{1}{49} (7\sigma^2) = \frac{\sigma^2}{7}

And for the second estimator we have this:

Var(\theta_2) = \frac{1}{4} (4\sigma^2 -\sigma^2 +\sigma^2)= \frac{1}{4} (4\sigma^2)= \sigma^2

And the relative efficiency is given by:

RE= \frac{Var(\theta_1)}{Var(\theta_2)}=\frac{\frac{\sigma^2}{7}}{\sigma^2}= \frac{1}{7}

Step-by-step explanation:

For this case we assume that we have a random sample given by: X_1, X_2,....,X_7 and each X_i \sim N (\mu, \sigma)

Part a

In order to check if an estimator is unbiased we need to check this condition:

E(\theta) = \mu

And we can find the expected value of each estimator like this:

E(\theta_1 ) = \frac{1}{7} E(X_1 +X_2 +... +X_7) = \frac{1}{7} [E(X_1) +E(X_2) +....+E(X_7)]= \frac{1}{7} 7\mu= \mu

So then we conclude that \theta_1 is unbiased.

For the second estimator we have this:

E(\theta_2) = \frac{1}{2} [2E(X_1) -E(X_3) +E(X_5)]=\frac{1}{2} [2\mu -\mu +\mu] = \frac{1}{2} [2\mu]= \mu

And then we conclude that \theta_2 is unbiaed too.

Part b

For this case first we need to find the variance of each estimator:

Var(\theta_1) = \frac{1}{49} (Var(X_1) +...+Var(X_7))= \frac{1}{49} (7\sigma^2) = \frac{\sigma^2}{7}

And for the second estimator we have this:

Var(\theta_2) = \frac{1}{4} (4\sigma^2 -\sigma^2 +\sigma^2)= \frac{1}{4} (4\sigma^2)= \sigma^2

And the relative efficiency is given by:

RE= \frac{Var(\theta_1)}{Var(\theta_2)}=\frac{\frac{\sigma^2}{7}}{\sigma^2}= \frac{1}{7}

5 0
3 years ago
Help help help help help help help
Aloiza [94]
Add the exponents so 3^3 or 27
7 0
3 years ago
Read 2 more answers
What is the answer to 1 / 3 - 1 / 6
DochEvi [55]
1/6 because 1/3 is 2/6
7 0
3 years ago
Other questions:
  • Also another answer choice, D 9.9
    12·1 answer
  • Complete the sentence. 5000 thousand is 1/10 of a what
    5·1 answer
  • Your gross weekly salary is $800.00. Your federal income tax deduction is $53. The Social Security tax is 6.2%. The Medicare tax
    13·1 answer
  • What is the simplified form of the seventh root of x to the fifth power times the seventh root of x to the fifth power? the squa
    6·2 answers
  • Construct a square whose area is<br> 36 cm²
    12·1 answer
  • If someone knows the answer please help
    9·1 answer
  • What is the value of x in the equation?<br> 3(x+6)=-18<br> 0 -36<br> 0-33<br> 0 -24<br> 0 -18
    13·1 answer
  • Halla el área de un triángulo equilátero de 54 cm de perímetros
    10·1 answer
  • Josie runs a 25-mile race in 5 hours. What is her speed in miles per hour?
    11·1 answer
  • What is the area of the shaded sector of the circle?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!