Proportion women /men = 2/7 = x/490 7x= 2· 490 :7
X = 2·70 = 140
Answer:https://quiz.let.com/216018638/course-1-chapter-4-multiply-divide-fractions-6ns1-6rp3-3d-flash-cards/
remove the period between quiz and let but there is a quizlet on it
Step-by-step explanation:
For a normal distribution <em>only, </em>for a population, not for particular sample.
proportion between 1 standard deviation, independent of μ and σ , is given by:
P(Z<1)-P(Z<-1)
=0.841345-0.158655=0.682689
=0.68 (to two places of decimal)
proportion between 2 standard deviations, independent of μ and σ , is given by:
P(Z<2)-P(Z<-2)
=0.977250-0.022750=0.954500=0.95 (to two places of decimal)
Answer: 13
Step-by-step explanation: i googled it
