Me ajudem nessa equação : 10x - 12 + 10= +18 - 20
1 answer:
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Answer: Given a sample of 200, we are 90% confident that the true proportion of people who watched educational TV is between 72.1% and 81.9%.
Step-by-step explanation:
=0.049
0.77±0.049< 0.819, 0.721