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Keith_Richards [23]
2 years ago
8

In point estimation a. data from the population is used to estimate the population parameter b. data from the sample is used to

estimate the population parameter c. data from the sample is used to estimate the sample statistic d. the mean of the population equals the mean of the sample
Mathematics
1 answer:
icang [17]2 years ago
4 0

Answer:

Option B) data from the sample is used to estimate the population parameter                  

Step-by-step explanation:

Point estimation:

  • Its is the process of getting a point estimate from a sample that describes a population parameter in the best way.
  • We calculate the unknown population parameter with the help of a sample drawn from the population.
  • It is similar to interval estimation.
  • In interval estimation we obtain an interval in which the population parameter may lie but in point estimation we obtain a single value which is the best approximation of population parameter.

Thus, the correct answer is

Option B) data from the sample is used to estimate the population parameter

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GuDViN [60]
<h3>Answer:  a = -3 and b = 5</h3>

=================================================

Work Shown:

Multiply top and bottom by \sqrt{2} to rationalize the denominator

\frac{10-\sqrt{18}}{\sqrt{2}}\\\\\frac{\sqrt{2}(10-\sqrt{18})}{\sqrt{2}*\sqrt{2}}\\\\\frac{\sqrt{2}*10-\sqrt{2}*\sqrt{18}}{\sqrt{2*2}}\\\\\frac{\sqrt{2}*10-\sqrt{2*18}}{\sqrt{4}}\\\\\frac{10\sqrt{2}-\sqrt{36}}{2}\\\\\frac{10\sqrt{2}-6}{2}\\\\\frac{-6+10\sqrt{2}}{2}\\\\\frac{2(-3+5\sqrt{2})}{2}\\\\-3+5\sqrt{2}\\\\

We end up with something in the form a+b\sqrt{2} where a = -3 and b = 5

7 0
2 years ago
Someone help me with this ..
Delicious77 [7]
3x+12=4x-15\\&#10;x=27\\\\&#10;\angle ABC=2(3x+12)=2(3\cdot27+12)=2(81+12)=2\cdot93=186^{\circ}
6 0
3 years ago
Help with this and explain please
svet-max [94.6K]

Answer:

Step-by-step explanation:

-6x + y  = -6                     Add 6x to both sides

y = 6x - 6                         So the slope of the new line is 6

The point the new line has to go through is (-4,0) That will determine b.

y = 6x - 6

x  = - 4

y = 0

0 = 6*(-4) + b                    Combine

0 = - 24 + b                      add 24 to both sides

24 = b  

Answer:  y = 6x + 24

4 0
2 years ago
Amanda bought 2 CDs that were each the same price. Including sales tax, she paid a total of $29.80. Each CD had a tax of $1.10 .
Len [333]

Answer:

13.80 there you go buddy

6 0
3 years ago
What is the math work you would do for this question?
Neko [114]
Oh my gosh I used to have that same workbook I HATED it. Anyways, the formular for volume is length x width x height, so for this rectangular prism you would multiply 4 2/5 x 10 x 3. Also it doesn’t matter which order you multiply because you should still have the same end result.

Hope this helps! If you need anymore answers from this book then ask me. My teacher made us do like 10 pages a day all school year.
7 0
2 years ago
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