HW5_skeleton

7.1

• 1. Probability density function
• 2. Model
• 3. True
• 4. 1/2
• 5. Mu - sigma, mu + sigma
• 6. Probability and proportion
• 25. mu = 2, sigma = 3
• 26. mu = 5, sigma = 2
• 27. mu = 100, sigma = 115
• 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. First interpretation - 2.28% of full-term babies will weight at least 4410 grams.

Second interpretation - there is a 0.0228 probability that a randomly chosen full-term baby will weigh at least 4410 grams.

1. First interpretation - the proportion of human pregnancies that last more than 280 days is 19.08%

Second interpretation - the probability is 0.1908 that a randomly selected human pregnancy lasts more than 280 days

2. First interpretation - the proportion of human pregnancies that last between 230 and 260 days is 34.16%

Second interpretation - the probability is 0.3416 that a randomly selected human pregnancy lasts between 230 and 260 days