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:
Step-by-step explanation:
cant see pic
Answer:
E
Step-by-step explanation:
2:12 is equivalent to 8:48
Answer:
47.4%
Step-by-step explanation:
It has to be below 50% because those weights fall at or below the average.
<span>the probability the coach selects all girls is m</span>ost likely