HW5_skeleton

7.1

• 1. Probability density function
• 2. Model
• 3. True
• 4. 1/2
• 5. x= Mew - 1 sigma and x= mew +1 sigma
• 6. the proportion OR the 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)

1. 2.28 % of babies born are greater than 4410 grams 2)The probability of picking a baby over 4410 grams is 2.28 %

1. 19.08% of pregnancies are longer than 280 days 2)The probability of picking a pregnancy longer than 280 days is 19.08%

1. 34.16 % are between 230 and 260 days
2. The probability of picking a pregnancy between 230 days and 260 days is 34.16 %