Mathematics, 25.02.2020 21:26 iixyloa
Let X denote the length of human pregnancies from conception to birth, where X has a normal distribution with mean of 264 days and standard deviation of 16 day
a. What is the probability that the sample mean length of pregnancy for 15 randomly selected women lasts less than 260 days.
b. The probability that the total length of pregnancy for 15 randomly selected women is greater than a certain amount is 0.05. Find this total length.
c. What is the probability that the sample total length of pregnancy for 7 randomly selected women is between 1800 and 1900 days?
d. The probability that the average length of pregnancy for randomly selected women is greater than 270 is 0.1151. Find the sample size of the random sample.
Answers: 3
Mathematics, 21.06.2019 17:40, kazmiere2005oye9tz
Afamily of five rents a kayak and splits the total time, k, equally. each family member spent less than 25 minutes kayaking. which values can be used to complete the math sentence below so that it accurately represents the situation? intro done
Answers: 2
Let X denote the length of human pregnancies from conception to birth, where X has a normal distribu...
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