All categories

3 years ago

What is an statistics

Mathematics

1 answer:

Vlad [161]3 years ago

7 0

Hello There!

Statistics is a tool used to help people process, summarize, analyze and interpret data for making better decisions.

It helps us with future events if we know what has happened in past.

Helps us make better decisions.

The better we know about the future of an outcome, the more possibility we have to work around it.

You might be interested in

If i roll a dice 120 times how many times am I gonna get 4

Butoxors [25]

Answer:

For this exercise, you classify the numbers and count them. If you get a 4 you count it, otherwhise you don’t.

This is analogous to having a box with six tickets in it:

[1] [0] [0] [0] [0] [0]

What would be the sum if you draw with replacement 120 times?

The average of the box is 1/6 (just like the probability of getting a 4 while rolling a die). So:

Expected value = (1/6) (120) = 20

You can expect to get 20 times the number 4 when rolling a die 120 times.

Now, the Standard Deviation of the box is 0.37, and the Standard Error is:

SE: 120−−−√(0.37)=4.08

Roughly, 95% of the times, the number of 4s will be between -2 and +2 standard errors. So:

95% of the times, the number of 4s will be between 12 and 28.

<h2>I think it is the perfect answer for you </h2>

Step-by-step explanation:

here is your answer Hope you will enjoy and mark me as brainlist

thank you

4 0

3 years ago

Read 2 more answers

Simplify the complex fraction. y-1/y^2+y-6/y-6/y+3

Fantom [35]

For this case we have the following complex fraction:
$\frac{\frac{y-1}{y^2+y-6} }{\frac{y-6}{y+3}}$
Using the double C method, we can rewrite the given fraction.
We have then:
$\frac{(y-1)(y+3)}{(y^2+y-6)(y-6)}$
Then, we must factor the quadratic expression into the denominator.
We have then:
$\frac{(y-1)(y+3)}{(y-2)(y+3)(y-6)}$
Finally, we cancel similar terms.
We have then:
$\frac{(y-1)}{(y-2)(y-6)}$
Answer:
the complex fraction simplified is:
B) y-1/(y-6)(y-2)

8 0

4 years ago

Read 2 more answers

15. True or False: Is x = 4 a solution to X + 51 = -9 True False

Ivenika [448]

Answer:

False, also the typed version of this problem does not actually use the expression in the accompanying screenshot. That clearly reads as x + 5

Step-by-step explanation:

The problem, assuming x = 4 can be read as 4 + 5. Simple math dictates this would equal nine and as there is no negative to either number nor a negative outside of the lines surrounding the problem itself the solution is simple and leads to a false answer.

3 0

3 years ago

Read 2 more answers

Please solve 1 thru 4

jolli1 [7]

Answer:

1.triangular prism

2.two dimensional

3.faces

4. surface area

5 0

3 years ago

Read 2 more answers

Find the area for this figure

Westkost [7]

8 square units

Divide figure into one square, and two triangles

Area of square:
2 x 2 = 4 square units

Area of ONE triangle:
1/2 x 2 x 2 = 2 square units
The triangles we have are both sizes, so multiply this by 2:
2 square units x 2 = 4 square units

ADD THE AREA OF SQUARE AND TRIANGLES:
4 square units + 4 square units = 8 square units

Have a nice day

3 0

3 years ago