HW5_skeleton

7.1

• 1. probability density function
• 2. model
• 3. true
• 4. 1/2
• 5. u-sigma, mu+sigma
• 6. less than, equal to
• 25. mu = 2, sigma = 2
• 26. mu = 5, sigma = 5
• 27. mu = 100, sigma = 100
• 28. mu = 530, sigma = 530
• 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 wiegh 4410 grams or more

1. 19.08% of pregnancies last 280 days

2. 34.16% of pregnancies last between 230 and 260 days