Answer:

And for the deviation we have:

And that value represent the best estimator for the population deviation since:
Step-by-step explanation:
For this case we have the following data:
1.48,1.45,1.54,1.52,1.52
The first step for this cae is find the sample mean with the following formula:

And replacing we got:

And now we can calculate the sample variance with the following formula:

And replacing we got:

And for the deviation we have:

And that value represent the best estimator for the population deviation since:
Answer:
7/17
Step-by-step explanation:
hope this helps
Answer: 20, 140, 240
Step-by-step explanation:
Answer:
-3 i think because it is low i am soooo sorry if its wrong i really wasnt trying to get points i wanted to help hope for the best
Step-by-step explanation: