Answer:
e. All of the reasons are correct.
Step-by-step explanation:
In most cases, studying all the population is impossible. In other cases, it is too expensive or time consuming.
A sample will give us, in most cases and combined with tools of statistical analysis (hypothesis testing or confidence intervals), enough information to make an unbiased estimation about the characteristic of the population we are studying.
Answer:
median: 90
mode: 91
mean: 84.2 or round it to 84
Step-by-step explanation:
Let me know if this helps! have a great day! :)
The solution to this equation is x=4.6 because 19.32/4.2=4.6
<span>True, Every diameter is a chord
but not every chord is a diameter
hope this helped :)</span>
