Answer:
Option B) Use sample statistics to make decisions about population parameters
Step-by-step explanation:
Statistical hypothesis testing
- Hypothesis testing is a statistical method that is used in making statistical decisions using a sample that is taken from the population.
- Statistical hypothesis testing is basically an assumption that we make about the population parameter. with the help of sample statistic.
- Calculations are performed on samples to gather more information about the population.
- This helps us to know that the particular sample belongs or does not belong to the population and estimate the parameters of the population with the help of this claim.
- Probability sampling involves random selection from the population and non-probability sampling relies on the selection based on judgement of the researcher.
Thus, Option B) Use sample statistics to make decisions about population parameters is the correct answer.
Finding the exact value of each number goes like this:
<em>x</em> = 0.212121...
100<em>x</em> = 21.212121...
==> 100<em>x</em> - <em>x</em> = 21.212121... - 0.212121...
==> 99<em>x</em> = 21
==> <em>x</em> = 21/99 = 7/33
Similarly:
<em>y</em> = 0.021021021...
1000<em>y</em> = 21.021021021...
==> 999<em>y</em> = 21
==> <em>y</em> = 21/999 = 7/333
and
<em>z</em> = 0.145714571457...
10000<em>z</em> = 1457.145714571457...
==> 9999<em>z</em> = 1457
==> <em>z</em> = 1457/9999
Then we end up with
<em>x</em> + <em>y</em> - <em>z</em> = 32345/369963
Answer:
sorry only know these two sorry brainly please.
Step-by-step explanation:
6. 5(4) +70=your answer is 90
8. 5(15) + 3(15) + 0
75+ 45+0=your answer is 110
3.2% ...to get a percent to a decimal, divide by 100
3.2/100 = 0.032 <== ur decimal
0.032...the last digit (2) is in the thousandths place...so put the 32 over 1000.
32/1000...which reduces to 4/125 <== ur fraction