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2 years ago

A statistic is said to be unbiased if

Mathematics

1 answer:

xxMikexx [17]2 years ago

8 0

Answer:

A statistic is said to be unbiased if the mean of its sampling distribution is equal to the true value of the parameter being estimated.

Step-by-step explanation:

A parameter is a number that describes the population.

A statistic is a number that describes a sample.

A statistic used to estimate a parameter is unbiased if the mean of its sampling distribution is exactly equal to the true value of the parameter being estimated. For example, the mean of a sample is an unbiased estimate of the mean of the population from which the sample was drawn.

A statistic is biased if its expected value is not equal to the parameter.

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Can please send answers with step

lawyer [7]

Answer:

A. 14 Sq.cm

Step-by-step explanation:

The area of the circle is 56 cm Sq.

Half of it is 28 Sq.cm

If you combine the 2 triangles it will make an area of 7sq.cm

then the Curved shaded part is also 7sq.cm together of the shaded part will create a quarter of the whole figure

56/4 Sq.cm

= 14Sq.cm

Thank you!!

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3 years ago

Two integers a and b have a product of 12 what is the least possible sum of a and b?

Eduardwww [97]

Answer:

I think it is 7

Step-by-step explanation:

Because 3*4= 12 and 3+4=7 and those are the numbers that make the smallest sum that I can think of

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2 years ago

Write 4/5x3/8 in lowest term

Luden [163]

$\frac{12}{40}$
this equals = 3 4/40 =☆ 3 1/10☆

4 0

2 years ago

Is <br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B100%7D%20" id="TexFormula1" title=" \sqrt{100} " alt=" \sqrt{100} " align=

Rainbow [258]

sqrt (100) is a rational number

10*10 = 100 (-10)*(-10) =100

sqrt(100)

=-10, 10

these are rational numbers

7 0

3 years ago

Find a number that is between 2/7 and 4/11 .

Furkat [3]

To answer this problem, one way is to use the calculator and add directly the two numbers and get the average between the two. The answer is 25/77. We can also get this number by getting the LCM of the denominators which is 77. 2/7 is equal to 22/77 while 4/11 is equal to 28/77. 0.5*(22 +28) is equal to 25. Hence the answer is 25/77.

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3 years ago