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
pav-90 [236]
3 years ago
10

A certain statistic bˆ is being used to estimate a population parameter B. The expected value of bˆ is equal to B. What property

does bˆ exhibit?
Mathematics
1 answer:
insens350 [35]3 years ago
6 0

Answer:

Unbiased

Step-by-step explanation:

If b^ is equal to B this means that it is an unbiased estimator. When there is an absence of bias, we have an unbiased estimator. As an unbiased estimator it gives accurate information most of the time. The result it gives is not over estimated and also it is not underestimated.

Expected value = true value

Parameter estimates are correct on average

Thank you

You might be interested in
Find the area. Around your answer to decimal places​
alexgriva [62]
  • Answer:

<em>86.20 ft²</em>

  • Step-by-step explanation:

<em>Hi there !</em>

<em>A = A₁ + A₂</em>

<em>A₁ =semicircle</em>

<em>A₁ = πr²/2</em>

<em>r = d/2 = 6.4ft/2 = 3.2 ft</em>

<em>A₁ = 3.14×(3.2ft)²/2 ≈ 32.15 ft²</em>

<em />

<em>A₂ =  trapezium</em>

<em>A₂ = (b + B)×h/2</em>

<em>A₂ = (5.1ft + 6.4ft)×9.4ft/2 = 54.05 ft²</em>

<em />

<em>A = 32.15 ft² + 54.05 ft² = 86.20 ft²</em>

<em>Good luck !</em>

7 0
3 years ago
Find the value of x. Round your answer to the nearest tenth.
harkovskaia [24]

Answer:

3.106

Step-by-step explanation: hope this helps

3 0
2 years ago
Read 2 more answers
Pls help me find the answer of the ratio ​
cricket20 [7]

Answer:

pretty sure it's 10 1/2

3 0
2 years ago
Read 2 more answers
Find the equation of the parabola with focus (5, 1) and directrix y = -1.
Mumz [18]
Check the picture below.

since the focus point is above the directrix, that simply means the parabola is a vertical one, and therefore the square variable is the "x".

keeping in mind that, there's a distance "p" from the vertex to either the focus point or the directrix, that puts the vertex half-way between those fellows, in this case at 0, right between 1 and -1, as you see in the picture, and the parabola looks like so.

since the parabola is opening upwards, the value for "p" is positive, thus

\bf \textit{parabola vertex form with focus point distance}&#10;\\\\&#10;\begin{array}{llll}&#10;4p(x- h)=(y- k)^2&#10;\\\\&#10;\boxed{4p(y- k)=(x- h)^2}&#10;\end{array}&#10;\qquad &#10;\begin{array}{llll}&#10;vertex\ ( h, k)\\\\&#10; p=\textit{distance from vertex to }\\&#10;\qquad \textit{ focus or directrix}&#10;\end{array}\\\\&#10;-------------------------------\\\\&#10;\begin{cases}&#10;h=5\\&#10;k=0\\&#10;p=1&#10;\end{cases}\implies 4(1)(y-0)=(x-5)^2&#10;\\\\\\&#10;4y=(x-5)^2\implies  y=\cfrac{1}{4}(x-5)^2

8 0
3 years ago
A rectangular garden has an area of 2/3 square miles and a length of 8/9 mile. What is the width of the garden? *HINT: Area form
Rufina [12.5K]

Answer:

the answer is 3/4

Step-by-step explanation:

please make me Brainliest

7 0
3 years ago
Read 2 more answers
Other questions:
  • Two sets of data have the same measures of central tendency. Are the data sets the same? Explain.
    12·2 answers
  • What is the slope of the line perpendicular to y=-3x+4?
    11·1 answer
  • A bicycle is made up of two basic geometric shapes. They are:
    5·2 answers
  • Help please For the following function, construct a table.
    6·1 answer
  • Plz help me Much appreciated.
    11·1 answer
  • Daniel invests $10,000 in a savings account that pays 1.5% simple interest. How much will be in the
    12·1 answer
  • Can someone help with this?
    13·1 answer
  • Please answer 12.) quick ! :(
    13·1 answer
  • A researcher is working with two variables measured at the interval level. Which statistical tool should the researcher use
    7·1 answer
  • X= 7 4. Find the equation of a line passing through (5, -6) perpendicular (b) 3x + 5y = (d) 7x - 12y (f) x = 7 (a) 2x + y = 12 (
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!