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3 years ago

Explain what is meant when it is said that "data vary". How does the variability affect the results of statistical analysis?

Mathematics

1 answer:

topjm [15]3 years ago

8 0

Step-by-step explanation:

To say "data vary" means the component opinions change from person to person. Particularly for certain people, certain parameters can change over time. Since the data vary, two separate statistical analyzes of the same variable can result in different outcomes. Thus statistical analyses should take into account this possible variability and thus we can never be 100% sure about the results of the statistical analysis.

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G(n) = n + 1 Find g(g(n))

mars1129 [50]

Answer:

the answer would be:

$n=0$

Hope that helps! :)

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

A body moves s metres in a time t seconds so that s = t3 – 3t2 + 8. Find:

Lady bird [3.3K]

Using derivatives, it is found that:

i) $v(t) = 3t^2 - 6t$

ii) 9 m/s.

iii) $a(t) = 6t - 6$

iv) 6 m/s².

v) 1 second.

<h3>What is the role of derivatives in the relation between acceleration, velocity and position?</h3>

The velocity is the derivative of the position.

The acceleration is the derivative of the velocity.

In this problem, the position is:

$s(t) = t^3 - 3t^2 + 8$

item i:

Velocity is the <u>derivative of the position</u>, hence:

$v(t) = 3t^2 - 6t$

Item ii:

$v(3) = 3(3)^2 - 6(3) = 27 - 18 = 9$

The speed is of 9 m/s.

Item iii:

Derivative of the velocity, hence:

$a(t) = 6t - 6$

Item iv:

$a(2) = 6(2) - 6 = 6$

The acceleration is of 6 m/s².

Item v:

t for which a(t) = 0, hence:

$6t - 6 = 0$

$6t = 6$

$t = \frac{6}{6}$

$t = 1$

Hence 1 second.

You can learn more about derivatives at brainly.com/question/14800626

7 0

2 years ago

Which statement is false?

oee [108]

I believe it’s the last one

7 0

3 years ago

James has dimes and quarters saved up in his change jar. He has a total of 162 coins totaling $31.20. James has dimes

SashulF [63]

The question is incomplete:

James has dimes and quarters saved up in his change jar. He has a total of 162 coins totaling $31.20 what is the total amount james has in quarters?

a. $10.00

b. $6.20

c.$15.50

d.$25.00

Answer:

d.$25.00

Step-by-step explanation:

With the information provided, you can write the following equations given that dimes are equal to 0.10 and quarters to 0.25 to determine the number of dimes and quarters that James has:

x+y=162 (1)

0.10x+0.25y=31.20 (2), where:

x is the number of dimes

y is the number of quarters

First, you can solve for x in (1):

x=162-y (3)

Then, you have to replace (3) in (2) and solve for y:

0.10(162-y)+0.25y=31.20

16.2-0.10y+0.25y=31.20

0.15y=31.20-16.2

0.15y=15

y=15/0.15

y=100

Finally, you have to replace the value of y in (3) to find x:

x=162-100

x=62

Now, you know that James has 100 quarters and you can multiply this number for the value of a quarter to find the amount James has in quarters:

100*0.25=25

According to this, the answer is that James has $25 in quarters.

4 0

3 years ago

What is 26 divided by 45702

irinina [24]

The answer is
0.000568902892652.

4 0

3 years ago

Explain what is meant when it is said that​ "data vary". How does the variability affect the results of statistical​ analysis?

Explain what is meant when it is said that "data vary". How does the variability affect the results of statistical analysis?