Mathematics, 26.06.2020 16:01, anaalashay
A sample of 1500 people from a certain industrial community showed that 800 people suffered from a lung disease. A sample of 1000 people from a rural community showed that 300 suffered from the same lung disease. Assume these two proportions give good estimates of population proportions, respectively. Find the probability that the difference of the proportions (industrial - rural) is greater than 0.2 if two samples of size 150 and 100 are drawn from the two populations, respectively.
Answers: 3
Mathematics, 21.06.2019 17:00, tonytashaqua
In triangle opq right angled at p op=7cm, oq-pq=1 determine the values of sinq and cosq
Answers: 1
Mathematics, 21.06.2019 20:30, esnyderquintero
Find the area of the triangle formed by the origin and the points of intersection of parabolas y=−3x^2+20 and y=x^2−16.
Answers: 3
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