(Round to four decimal places as needed) The lengths of a particular animal's pregnancies are approximately...
me lengths of a particular animal's pregnancies are approximately normally distributed, with mean p=272 days and standard deviation o = 20 days. ) What proportion of pregnancies lasts more than 277 days? What proportion of pregnancies lasts between 262 and 287 days? c) What is the probability that a randomly selected pregnancy lasts no more than 267 days? d) A "very preterm baby is one whose gestation period is less than 227 days. Are very preterm babies unusual? a) The...
The lengths of a particular animal's pregnancies are approximately normally distributed, with mean μ=269 days and standard deviation σ=12 days.(a) What proportion of pregnancies lasts more than 290 days?(b) What proportion of pregnancies lasts between 254 and 278 days?(c) What is the probability that a randomly selected pregnancy lasts no more than 248 days?(d) A "very preterm" baby is one whose gestation period is less than 242 days. Are very preterm babies unusual?
MyLê This Question: 1 pt Stude 2 of 12 (1 complete) This Quiz: 12 pts possible о му с Question Help Cours The lengths of a particular animal's pregnancies are approximately normally distributed, with mean y = 270 days and standard deviation o 8 days. (a) What proportion of pregnancies lasts more than 276 days? Assig (b) What proportion of pregnancies lasts between 268 and 274 days? (c) What is the probability that a randomly selected pregnancy lasts no more...
Assume the random variable X is normally distributed with mean μ= 50 and standard deviation σ 7. Find the 87th percentile. The 87th percentlie is Round to two decimal places as needed.) The number of chocolate chips in an 18-ounce bag of chocolate chip cookies is approximately normally distributed with a mean of 1252 chips and standard deviation 129 chips (a) What is the probability that a randomly selected bag contains between 1100 and 1400 chocolate chips, inclusive? (b) What...
Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed with mean mu equals 259 days and standard deviation sigma equals 18 days what is the probability that a randomly selected pregnancy lasts less than 252 days?
Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed with means mu equals 255 days μ=255 days and standard deviation sigma equals 14 day σ=14 days. (a) What is the probability that a randomly selected pregnancy lasts less than 250 days? The probability that a randomly selected pregnancy lasts less than 250 is approximately?
Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed with mean u = 282 days and standard deviation o = 20 days. Complete parts (a) through (f) below. (a) What is the probability that a randomly selected pregnancy lasts less than 274 days? The probability that a randomly selected pregnancy lasts less than 274 days is approximately (Round to four decimal places as needed.)
Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed with a mean of μ=188 days and a standard deviation of σ=13 days. What is the probability that a randomly selected pregnancy lasts less than 184 days?
Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed with mean u = 282 days and standard deviation o = 20 days. Complete parts (a) through (f) below. (a) What is the probability that a randomly selected pregnancy lasts less than 274 days? The probability that a randomly selected pregnancy lasts less than 274 days is approximately 0.3446. (Round to four decimal places as needed.) Interpret this probability. Select the correct choice below and fill...
1. The lengths of pregnancies are normally distributed with a mean of 268 days and a standard deviation of 15 days. a) Find the 80th percentile of pregnancy length. b) Find the pregnancy length that separates the upper 30% c) Find the pregnancy lengths that separate the middle 80% d) Find the percent of pregnancies that are less than 260 days. e) Find the percent of pregnancies that are between 250 and 280 days