Thealrightperson
contestada

Dylan wanted to find the average number of hours per day that the students in his class practiced their instruments. He chose three students by drawing their names from a hat. What should he do to ensure that he has an accurate average for the class?

A) He should add the three numbers and divide by 3 because that is how one finds an average.
B) He should poll more students to eliminate the variability caused by a sample size that is too small.
C) He should take the middle number as his average since he has three observations.
D) He should just find the average of 0.5 and 4 since 0 does not change anything when adding.

Dylan wanted to find the average number of hours per day that the students in his class practiced their instruments He chose three students by drawing their nam class=

Respuesta :

B he should elimnate varability

Answer:

B) He should poll more students to eliminate the variability caused by a sample size that is too small.

Step-by-step explanation:

A sample size of three is too small.  It could lead to misleading statistics, as a sample that small is not representative of the population (in this case, the students in his class).

This means he should poll more students to get a better sample size.