Zander wants to find out what the most popular sporting event is in the district’s high schools. he surveys a sample of the population. under which condition is surveying a sample valid?
the population is small.
the population contains a large diverse group of people.
there are many different possible answers to the question.
there are some people in the population that do not like sports.

Option ii is right

Step-by-step explanation:

Given that Zander wants to find out what the most popular sporting event is in the district’s high schools.He surveys a sample of the population.

If the population is small, then he need not survey sample but can survey entire population to get accurate results.  Hence option i is wrong

The population contains a large diverse group of people.-- This option is right, because only when population is large and diverse sampling is resorted to since full survey is not possible.

Option iii is wrong since even if one answer is possible, sampling can be conducted.

Option iv is wrong because just because there are some people who do not like sports, sampling need not be valid.

4/6 = 2/3

so it should take 3/3 hours per man. so 9 hours is the answer 3*3 =9

step-by-step explanation: