Answer:
a. There's a 95% chance that the true proportion is in the confidence interval.
Step-by-step explanation:
When we want to estimate a property of a population (a population's parameter), without surveying the population, we use samples.
Then, with the information of the samples we can calculate the statistics and infere properties about a population. This inferences obviously came with some uncertainty, depending on the properties of the sample and specially the sample size.
When we talk about confidence intervals, we use the statistic of the sample (in this case, the mean) to estimate a range of values it is expected to find the true mean of the population. The width of this interval depends on the sample standard deviation and the sample size.
The value of the confidence interval (95%, 99%, etc) represent the probabilty that the true mean is within this interval.
< and > means greater than or less than**
Anything that is closer to the positive side of the number line is considered greater.
So,
All are true.
Answer:
0.9 can be written as a fraction 
Step-by-step explanation:
0.9 written as a fraction
if we have no denominator at the bottom then we put 1 at the bottom
0.9 can be written as 
Now we need to remove the decimal point
we have 9 after the decimal point. one number after the decimal point.
To remove the decimal point we multiply both top and bottom by 10
0.9 can be written as a fraction
Answer:
C
Step-by-step explanation:
the answer is c, hope this helped :)
Answer: b > 10
Step-by-step explanation:
b + 8 > 18
Subtract 8 from both sides
that leaves you with
b > 10
