All categories

3 years ago

A random sample is a sample drawn in such a way that

Mathematics

1 answer:

AysviL [449]3 years ago

5 0

Answer:

A random sample is a sample drawn in such a way that is random and does not favor another party. For example if a bakery owner is conducting a survey on what his customers would like to add to the menu, it would not be a random sample if he only asked customers 50 years old and older. Instead he would have to ask all ages for it to be accurate.

You might be interested in

Which of the following if the value of x?

krek1111 [17]

Answer:

i think it will be 14

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Calculate the sum of the series whose partial sums are given.

aleksley [76]

When we calculate the sum of the series C∞, n=1 ∑ an
whose partial sums are given
sn = 2 − 9(0.9)ⁿ
We can get an answer which is 2.
It has an infinite number of terms, the infinite series. The partial sum is the sum of the first n terms, Sn. The answer in this question is 2.

7 0

3 years ago

What is X? x divided by 4/9 = 9/10

Damm [24]

Answer:

2/5

Step-by-step explanation:

$\frac{x}{\frac{4}{9} } =\frac{9}{10}$

$(\frac{9}{10})(\frac{4}{9} )=\frac{36}{90}$

36 divided by 90 is 2/5.

When solving for X you do the opposite to a number if you are moving it to the other side of the problem. so, since x is being divided by 4/9, 4/9 would be multiplied to the opposite or to the 9/10.

7 0

3 years ago

Put the fraction in least to greatest 1/5, 5/5 ,4/5

konstantin123 [22]

Answer:

1/5, 4/5, 5/5

Step-by-step explanation:

1/5 is 20%

4/5 is 80%

5/5 is 100%

8 0

3 years ago

Read 2 more answers

An airplane pilot over the Pacific sights an atoll at an angle of depression of 5 . At this time, the horizontal distance from t

Aleonysh [2.5K]

Answer:

404.98 m

Step-by-step explanation:

The angle of depression is 5°

The horizontal distance from the airplane to the atoll is 4629 meters.

We need to find the height of the plane.

If we consider a triangle. 4629 meters will be the base and angle is 5°. Let h is the height of the plane. Using trigonometry to find it :

$\tan\theta=\dfrac{x}{4629 }\\\\\tan(5)=\dfrac{x}{4629 }\\\\x=\tan(5)\times 4629 \\\\x=404.98\ m$

So, the height of the plane is 404.98 m.

6 0

2 years ago