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3 years ago

What makes a sample random

Mathematics

2 answers:

Yuliya22 [10]3 years ago

7 0

Answer:

A simple random sample is a subset of a statistical population in which each member of the subset has an equal probability of being chosen. ... An example of a simple random sample would be the names of 25 employees being chosen out of a hat from a company of 250 employees

Step-by-step explanation:

i searched it up

Misha Larkins [42]3 years ago

4 0

Answer: A random sample is a sample that is chosen randomly.

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Please help!! MathsWatch, Surd Expressions, Clip 207c

dexar [7]

Answer:

$A=(72+36\sqrt{3})\ mm^2$

Step-by-step explanation:

see the attached figure with letters to better understand the problem

Let

a ----> the height of rectangle in mm

b ---> the base of rectangle in mm

step 1

Find the base of rectangle

$b=AB+BC+CD+DE$ ----> by segment addition postulate

substitute

$b=3+3+3+3=12\ mm$

step 2

Find the height of rectangle

$a=FB+CG+GH$ ---> by segment addition postulate

substitute the given values

$a=3+CG+3\\a=6+CG$

Find the length sides CG

Applying the Pythagorean Theorem

$BG^2=BC^2+CG^2$

substitute the given values

$6^2=3^2+CG^2$

$CG^2=6^2-3^2$

$CG=\sqrt{27}\ mm$

simplify

$CG=3\sqrt{3}\ mm$

therefore

$a=(6+3\sqrt{3})\ mm$

step 3

Find the area of rectangle

$A=ab$

we have

$a=(6+3\sqrt{3})\ mm$

$b=12\ mm$

substitute

$A=(6+3\sqrt{3})(12)=(72+36\sqrt{3})\ mm^2$

8 0

3 years ago

Someone please help me I suck @ simplifying thank you

ycow [4]

The anwer is 67/72 and can not be simpled any more

5 0

3 years ago

Select all of the expressions that have a value between 0 and 1

MrRissso [65]

Cuff ffff ffffd ffff

8 0

2 years ago

How many times larger is 4 x 10 12 than 8 x 10 7?

USPshnik [31]

Answer:

50000 times

Step-by-step explanation:

Since these are given in scientific notation, we can convert them to have the same powers of 10. Converting 4*10^12 to something times 10^7, we can get 4*10^5*10^7. So we divide 400000 by 8 to see how many times larger it is than 8. So we get 50000 times as our answer.

5 0

3 years ago

if you had a cube with a side length of 4, how can you write the calculations in exponential form? what are 2 other ways to read

lesya692 [45]

4^3
You Would Write Is 4x4x4
You Would Verbally Say Four To The Third Or Four Cubed

5 0

3 years ago