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3 years ago

What does simple, stratified, systematic, convenience, and voluntary mean in mathematics?

1 answer:

7 0

The terms simple, stratified, systematic, convenience and voluntary are used to refer to samples therefore, in statistics. Simple sample is a type of sample that which is most likely to be chosen. The stratified sample refers to the grouping of samples. Systematic sample is when sample is taken with exact interval unit. Convenience sample is a sample with accessible population items. Voluntary sample is a sample made up of willing participants.

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A ladder reaches 2m up a wall. The foot of ladder is 0.4m from the wall. For safety reasons, the slope should be between 6.3 and

NeTakaya

Answer:

The slope of ladder is not within the safe range .

Step-by-step explanation:

Given as :

The height of the ladder up a wall = h = 2 meters

The distance of base of ladder from the wall = x = 0.4 meters

The estimated safety range of slope of ladder is between 6.3 and 9.5

Let The slope of the ladder = x

<u>According to question</u>

slope of the ladder = $\dfrac{\textrm height of ladder up wall}{\textrm distance of base of ladder from wall}$

Or, x = $\dfrac{2 meters}{0.4 meters}$

Or, x = 5

So, The slope of the ladder = x = 5

Since The estimated range of slope between 6.3 and 9.5

And The calculate slope of ladder = 5

Hence, The slope of ladder is not within the safe range . Answer

4 0

4 years ago

Someone help me on this one

juin [17]

It's an isosceles triangle, so the angles at the base are congruent:

$m\anlge WXY=m\angle WZY$

The triangle XYW is a rectangular triangle.

We know that the sum of the measures of angles in a triangle is 180°.

Therefore we have the equation:

$m\angle YWZ+90^o+17^o=180^o\\\\m\angle YWZ+107^o=180^o\ \ \ |-107^o\\\\m\angle YWZ=73^o$

Answer: 73

6 0

4 years ago

A coordinate grid with 2 lines. The first line labeled f(x) passes through (negative 3, 3), (0, 2), and (3, 1). The second line

vesna_86 [32]

Answer:

(0, 2)

Step-by-step explanation:

the answer is (0, 2)

8 0

3 years ago

800/16 simplest form

Alex17521 [72]

800/16 in the simplest form is basically divide 800 by 16 which equals to 50,

7 0

3 years ago

(3600)(7.5x-10x-10))

Nata [24]

(3600)(7.5x-10x-10)
Calculate the difference
3600x(-2.5x-10)
Multiply the values
(3600x -2.5x-3600x10)
write the value as a fraction
and so your answer would be
-9000x-36000

6 0

3 years ago