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user100 [1]
2 years ago
15

The following graphs show the sampling distributions for two different point estimators, R and W, of the same population paramet

er.
Mathematics
1 answer:
Sidana [21]2 years ago
7 0

The graphs are illustrations of biased and unbiased distributions.

The true statement is (d) R is biased, and W is unbiased

<h3>How to determine which of the graph is biased</h3>

From the graph, we have the following highlight

  • The population parameter of graph R is at the right of the distribution
  • The population parameter of graph W is at the center of the distribution

The above means that:

Graph R is biased, and graph W is unbiased

Read more about biased distributions at:

brainly.com/question/26415101

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Two horses are ready to return to their barn after a long workout session at the track. the horses are at coordinates H(1,10) an
olya-2409 [2.1K]
The given information are the coordinates of points H, Z and B. So, the first step to do is to plot these points on a Cartesian plane as shown in the attached picture. We can deduce visually that horse Z is closer to the barns than horse H. But, to further justify the answer, we have to provide the magnitude of the distance of horses H and Z to barn B. In this approach, we use the distance formula:

d = √(x₂ - x₁)² + (y₂ - y₁)²

Use the coordinates of the two points to know their linear distances. These are represented by the red and green lines for each of the horses.

Distance between H and B = √(⁻3 - 1)² + (⁻9-10)²
Distance between H and B = √(⁻3 - 1)² + (⁻9-10)²
Distance between H and B  = 19.4165

Since the scale is 1 unit = 100 meters, the actual distance between horse H and barn B is 19.416*100 = 1,941.65 meters


Distance between Z and B = √(⁻3 - 10)² + (⁻9-1)²
Distance between Z and B = √(⁻3 - 10)² + (⁻9-1)²
Distance between Z and B  = 16.4012

Since the scale is 1 unit = 100 meters, the actual distance between horse Z and barn B is 16.4012*100 = 1,640.12 meters

Comparing the distances: 1,941.65 meters > 1,640.12 meters. Therefore, it justifies that horse Z is nearer to the barn.

4 0
3 years ago
Ben's car depreciates in value by 15 % per year. Ben bought his car for £ 22000 . Work out how much his car will be worth after
Mazyrski [523]

Answer:

£8297.29

Step-by-step explanation:

£22 000 x 0.85 to the power of 6=£8297.29

6 0
2 years ago
ASAP please i need help
Alla [95]

Answer:

1 hr 20 min.

Step-by-step explanation:

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3 years ago
If f(x) = x2 − 81 and g(x) = x+9/x-9, find g(x) · f(x).
dexar [7]

Answer:

f(x) = x² - 81 = ( x+ 9)(x - 9) Difference of two squares

g(x) = x+9/x-9

g(x) . f(x) = x + 9/ x - 9 × (x+9)(x - 9)

= ( x + 9)(x +9)

= ( x + 9)²

= x² + 18x + 81

Hope this helps.

3 0
3 years ago
The average human body temperature is 98.6 far Fahrenheit.Write 98.6 as a mixed number in simplest form.
zimovet [89]
98 3/5 is the correct answer
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3 years ago
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