A marketing company will conduct a survey to determine which grocery store is most popular in a city. Which group of people would be considered the best random sample? A. Every 100th household in the city B. Everyone 10th person walking in the mall C. Every 100th person from the telephone book D. Every 10th person outside of one grocery store

Option A

Step-by-step explanation:

Taking a random sample of every 100th household in the city is the best random sample for this survey as every household has to go for grocery shopping at least maybe one or twice a week. And a questionable survey or telephone survey can be used to determined which grocery store they go to and this was be able to estimate the most popular of the grocery stores without bias. The rest options especially b and d if used will produce bias which might tend to lean in favour of the mall wherein they are and not be a representative of the population's opinions.

correct answer is b. 27/8

step-by-step explanation:

3,6 and 7.

step-by-step explanation:

a) unit place of 37 is 7

so the unit place of cube of 37 will be

7³= 343=3

the answer is 3.

b) unit place of 56 is 6, so the unit place of cube of 56 will be

6³= 216=6

the answer is 6.

c) unit place of 133 is 3, so the unit place of cube of 133 will be

3³= 27= 7.

the answer is 7.