HW5_skeleton

7.1

• 1. probability density function
• 2. model
• 3. true
• 4. 1
• 5. u - o/ u + o
• 6. probability or proportion
• 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. 1.) 2.28% of all full term babies have a birth weight of more than 4410 grams. 2.) the probability of 0.0228 that the birth weight of a randomly chosen full term baby is more than 4410 grams.

1. 1.) The proportion of human pregnancies that last more than 280 days is .1908 2.) The probability that a randomly selected human pregnancy lasts more than 280 days is .1908

2. 1.) The proportion of human pregnancies that last between 230 and 260 days is .3416 2.) The probabiity that a randomly selected human pregnancy lasts between 230 and 260 days is .3416