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notka56 [123]
3 years ago
6

Do the sample standard deviations target the value of the population standard​ deviation? In​ general, do sample standard deviat

ions make good estimators of population standard​ deviations? Why or why​ not?
Mathematics
1 answer:
MArishka [77]3 years ago
6 0

Answer:

If the mean of the sample standard deviations is equal to the population standard​ deviation, then the sample standard deviations target the population standard deviation and are called an unbiased estimator.  

If the mean of the sample standard deviations is not equal to the population standard​ deviation, then the sample standard deviations target the population standard deviation and are called a biased estimator.

A biased estimator regularly underestimates or overestimates the parameter.  

  • An unbiased sample statistics are good​ estimators
  • A biased sample statistics are not good estimators.
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Which 3 quarts is equivalent to 6 pints. 
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Plz help me will give the crown to the person who puts it right
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3 years ago
What is the measure of ZP, to the<br> nearest degree?<br> O 44°<br> O 46°<br> 0 58°<br> 0 72°
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6 0
3 years ago
Rachel has an 80:1 scale drawing of the floor plan of her house. On the floor plan, the dimensions of her rectangular living roo
Allushta [10]

Answer:

208⅓ ft²

Step-by-step explanation:

The dimensions of Rachel's living room are 80 times the measurements on the scale drawing.

Calculate the width:

                                                                                     w = 80 × 1⅞

Convert the mixed number to an improper fraction     = 80 × 15/8

Cancel the 8s                                                                  = 10 × 15

                                                                                        = 150 in

Convert inches to feet                                                   = 150/12  

Convert the improper fraction to a mixed number      = (144 + 6)/12

                                                                                        = 12⁶/₁₂

Reduce the fraction to lowest terms                             = 12½ ft

Calculate the length

l = 80 × 2½  = 80 × 5/2 = 40 × 5 = 200 in = 200/12 = (192 + 8)/12

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Calculate the area

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Convert the mixed numbers to improper fractions

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Cancel the 2s

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Multiply numerators and denominators                        

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Convert the improper fraction to a mixed number    

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3 0
3 years ago
Solve by substitution (show steps) -3x-4y=10 -6x+y=-16
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Now replace y by (- 4) in any of the 2 equations & you will find x = 2

6 0
4 years ago
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