HW5_skeleton

7.1

• 1. Probability Desnsity Function
• 2. Model
• 3. True
• 4. 50% or 1/2
• 5. x= mu+sigma, x= mu-sigma
• 6. proportion or probability
• 25. mu = 2, sigma = 3
• 26. mu = 5, sigma = 2
• 27. mu = 100, sigma = 15
• 28. mu = 530, sigma = 100
• 33 parts a and b are done for you. But please take a second and look at it!

shadenorm(mu=3400, sig=505, between=c(4410, 6000),col = "blue",dens = 150)

3. 2.28% of babies born full term weigh more than 1410 grams; The probability that a ranomly selected full term baby will weigh more tha 1410 grams is .0228.

1. The proportion of human pregnancies that last more than 280 days is .1908; the probability that a randomly selected human pregnancy lasts more than 280 days is .1908

2. The proportion of human pregnancies that last between 230-260 days is .3416;The probability that a randomly selected human pregnancy lasts between 230-260 days is .3416.