Answer:
Step-by-step explanation:
The method applied in this scenario is called simple random sampling. A sample of 100 customers is chosen from a larger population of customers and each customer has the same chance of being selected for the survey at any given time. Also, the chance of selecting 100 customers from each store is the same during the sampling process. The order of sampling at each store does not follow a certain order, thus, It is different from systematic random sampling.
составим уравнение
11х=9х+124
2х=124
х=62
проверим ответ
682=558+124
тогда, общее количество детей
682+558=1240
Answer:
228
Step-by-step explanation:
