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Artist 52 [7]
3 years ago
15

Choose the correct definition of a sampling distribution. The sampling distribution of a statistic of size n is:_______a. The di

stribution of all values of the statistic resulting from all samples of size n n taken from the same population. b. The distribution of the statistic in one simple random sample of size n n from a given population. c. The distribution of the parameter in all possible populations of size n n. d. The distribution of the values obtained from a simple random sample of size n n from the same population. e. The distribution of the parameter in one simple random sample of size n n from a given population.
Mathematics
1 answer:
Grace [21]3 years ago
7 0

Answer:

The correct option is d)

The distribution of the values obtained from a simple random sample of size n from the same population

Step-by-step explanation:

Sampling distribution is the process of getting sample through simple random techniques from the population.

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F(x)=2x + 1 and g(x) = -3x+4. Find f(x) + g(x)
Aneli [31]
To do this, simply add the 2 functions-as it says:

(2x+1) + (-3x+4)
2x+1-3x-4
-x-3

Your answer is -x-3
5 0
3 years ago
A projectile is thrown upward so that its distance above the ground after t seconds is h =-13t2 + 390t. After how many seconds d
sertanlavr [38]

Answer:

<h3>The option C) 15 s is correct</h3><h3>Therefore the maximum height it reaches in <u>15 seconds. </u></h3>

Step-by-step explanation:

Given equation is h =-13t^2 + 390t

Given that a projectile is thrown upward so that its distance above the ground after t seconds is h =-13t^2 + 390t

<h3>To find how many seconds does it reach its maximum height:</h3>

"The standard form of a parabola's equation is  expressed as :

y=ax^2+bx+c.

If a>0, then the parabola opens upwards;

if a the parabola opens downwards."

The maximum height is the vertex of the parabola  h =-13t^2 + 390t which is \frac{-b}{2a}.

Comparing the given equation with the standard form of parabola we get

the values of a=-13 , b=390 and c=0

The maximum height in t=\frac{-b}{2a}.

Substitute the values we get

t=-\frac{390}{2(-13)}

=\frac{390}{26}

=15

<h3>∴ t=15 s</h3><h3>∴ The option C) 15 s is correct.</h3><h3>∴ the maximum height is the vertex of the parabola, at t reaches in 15 seconds. </h3>
3 0
3 years ago
The water level at a pier is modeled by the function y= 2.5 cos(2pi/12.5) +12, where y represents the water level measured in me
ivolga24 [154]

Answer: 3.1 hours

Step-by-step explanation: Just took the quiz on edg.

3 0
4 years ago
A Copy of machine produces 80 copies in 5 minutes. How many copies would be produced in 40 minutes?
BlackZzzverrR [31]
The answer would be 640. To find the number of how many copies are produced in 1 minute you have to write 80 divided by 5 which equals 16. Now you multiply 16 and the 40 minutes which gives you 640 copies.

6 0
3 years ago
Read 2 more answers
Plese tell how to solve this​
klasskru [66]

Answer:

hope you understand the answers

8 0
3 years ago
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