The manager of a toy company wants to find out how many defective toys are produced by his company each year. As a sample for the survey, he plans to examine the first 100 toys made on a Monday morning.

Why might this group of toys not be a valid sample? Check all that apply.

A) the sample should be all the toys produced

B) the sample should represent all the toys produced throughout the day, not just the first 100

C) the sample should only be 10 toys

D) the sample should represent an entire week or month, not just a single day

E) the manager cannot tell if a toy is defective

B) The sample should represent all the toys produced throughout the day, not just the first 100. D) The sample should represent an entire week or month, not just a single day.

Step-by-step explanation:

My ghost friend said that it was right.

B and D

Step-by-step explanation:

A sample is a small representative of a quantity intended to show a characteristic of the whole population.

In this case, the manager wants to find out the number of defective toys produced by his company each year. The best sample should be for all toys produced per day not the first 100 toys because chances are that in the 100 toys none will be a defective yet there is still more produced for the rest of the day. The sample taken is only for the first 100 toys produced per day. A similar case is true for option D, where a valid sample should be for the whole week or month not just a day.