NeonPlaySword
30.07.2021 •
Mathematics
In a large population, 71% of the households have cable tv. A simple random sample of 121 households is to be contacted and the sample proportion computed. What is the mean and standard deviation of the sampling distribution of the sample proportions?
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Ответ:
there would have been 12 crackers on the plate at the start
Step-by-step explanation:
So 1/3 +1/4 = 7/12
Therefore 5/12 left on the plate …ie 5.
So total to start with
5/5×12=12
Ans 12