HW5_skeleton

7.1

• 1. probability density function
• 2. model
• 3. True
• 4. 1/2
• 5. ?? - ??, ?? + ??
• 6. population, proability
• 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. Interpretation 1: 2.28% of all full term babies have a birth weight of at least 4410 grams. Interpretation 2: The probability is 0.0228 that the birth weight of a randomly chosen full-term baby is at least 4410 grams.

1. Interpretation 1: The proportion of human pregnancies that last more than 280 days is 19.08%, Interpretation 2: The probability is 0.1908 that a randomly selected human pregnancy lasts more than 280 days.

2. Interpretation 1: The proportion of human pregnancies that last between 230 and 260 days is 34.16%, Interpretation 2: The probability is 0.3416 that a randomly selected human pregnancy lasts between 230 and 260 days.