the hight temperature X (in Celsius degree) in June in London Ontario, varies according to the...
the hight temperature X (in Celsius degree) in June in London Ontario, varies according to the Normal distribution with mean 20 and standard deviation 4. If four June days in London Ontario are randomly selected, what is the probability that the average high temperature(of the four days) is between 14 and 26 degrees
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the hight temperature X (in Celsius degree) in June in London
Ontario, varies according to the...
(1 point) The length of human pregnancies from conception to birth varies according to a distribution...
(1 point) The length of human pregnancies from conception to birth varies according to a distribution that is approximately Normal with mean 266 days and standard deviation 16 days. A. Find the probability that the average pregnancy length for 7 randomly chosen women exceeds 270 days. (Use at least five decimals of accuracy in your answer) Probability = B. Find the probability that the average pregnancy length for 22 randomly chosen women exceeds 270 days. (Use at least five decimals...
2. The length of human pregnancies from conception to birth varies according to a normal distribution...
2. The length of human pregnancies from conception to birth varies according to a normal distribution with mean 272 days and standard deviation 15 days (a) If one birth is selected at random, then find the probability the pregnancy lasted at least (15) 280 days (b) If 1000 births are randomly selected, then how many of those pregnancies would have been expected to have lasted at least 280 days? 3. The BMI (Body-Mass Index) of 20-something men is approximately normally...
The average daily high temperature in June in LA is 80∘F with a standard deviation of...
The average daily high temperature in June in LA is 80∘F with a standard deviation of 6∘F. Suppose that the temperatures in June closely follow a normal distribution. (a) What is the probability of observing a 76∘F temperature or higher in LA during a randomly chosen day in June? 74% (b) What is the probability of observing a 77∘F temperature or lower in LA during a randomly chosen day in June? 31% (c) What is the probability of observing a...
The average monthly temperature for January follow a normal distribution, with a mean of -8 degree...
The average monthly temperature for January follow a normal distribution, with a mean of -8 degree celsius and a standard deviation of 2.1 degree celsius. What is average monthly temperature marks the 15th percentile?
The amount X of orange juice in a randomly selected half-gallon container varies according to a...
The amount X of orange juice in a randomly selected half-gallon container varies according to a normal distribution with mean 60 ounces and standard deviation 0.5 ounce. Amount in a container is acceptable if it is within the range of 59.25 and 61.25 ounces. (a) Sketch the graph of the density function for X. (b) If a container is randomly selected, what is the probability that the container has acceptable amount of orange juice? (c) What is the range of...
2. The length of human pregnancies from conception to birth varies according to a normal distribution...
2. The length of human pregnancies from conception to birth varies according to a normal distribution with mean 272 days and standard deviation 19.5 days. (a) If one birth is selected at random, then find the probability the pregnancy lasted no more than 250 days. (15) (b) If 1000 births are randomly selected, then how many of the pregnancies would be expected to last no more than 250 days? ack to 3. (a) Referring to Problem 2, at least how...
Temperatures in LA. The average daily high temperature in October in Los Angeles is 79 degrees...
Temperatures in LA. The average daily high temperature in October in Los Angeles is 79 degrees Fahrenheit with a standard deviation of 5 degrees Fahrenheit. Suppose that the temperatures in October closely follow a normal distribution. Round calculated answers to 3 decimal places. 1. What is the probability of observing an 78 degrees Fahrenheit temperature or higher in Los Angeles during a randomly chosen day in October? 2. How cold are the coldest 30% of the days during October in...
9. (15.24) The length of human pregnancies from conception to birth varies according to a distribution...
9. (15.24) The length of human pregnancies from conception to birth varies according to a distribution that is approximately Normal with mean 266 days and standard deviation 16 days. The probability that the average pregnancy length for 6 randomly chosen women exceeds 270 days is about a 0.40. b 0.27. c 0.07. 10. (15.12) The gypsy moth is a serious threat to oak and aspen trees. A state agriculture department places traps throughout the state to detect the moths. When...
Supposed that the mean body temperature for adults has a normal distribution with mean = 98.2F...
Supposed that the mean body temperature for adults has a normal distribution with mean = 98.2F and standard deviation = 0.8F. a. What is the probability that a randomly selected adult has a body temperature less than or equal to 98.6F? b. What is the probability that a randomly selected adult has a body temperature greater than 99.2F? c. What is the probability that a randomly selected adult has a body temperature between 97 and 98 degrees?
3.19 Suppose the length o human pregnancies from conception to birth varies according to a distribution...
3.19 Suppose the length o human pregnancies from conception to birth varies according to a distribution that is approximately Normal with mean 272 days and standard deviation 16 days. 95% o a pregnances last between 240 and 304 days wans3[6] ans216) (3.20) According to a study, the scale of scores on an TQ test of adults is approximately Normal with mean 98 and standard deviation 16. The organization MENSA, which calls itself "the high-IQ society," requires an IQ score of...
(1 point) The length of human pregnancies from conception to birth varies according to a distribution that is approximately Normal with mean 266 days and standard deviation 16 days. A. Find the probability that the average pregnancy length for 7 randomly chosen women exceeds 270 days. (Use at least five decimals of accuracy in your answer) Probability = B. Find the probability that the average pregnancy length for 22 randomly chosen women exceeds 270 days. (Use at least five decimals...
2. The length of human pregnancies from conception to birth varies according to a normal distribution with mean 272 days and standard deviation 15 days (a) If one birth is selected at random, then find the probability the pregnancy lasted at least (15) 280 days (b) If 1000 births are randomly selected, then how many of those pregnancies would have been expected to have lasted at least 280 days? 3. The BMI (Body-Mass Index) of 20-something men is approximately normally...
2. The length of human pregnancies from conception to birth varies according to a normal distribution with mean 272 days and standard deviation 19.5 days. (a) If one birth is selected at random, then find the probability the pregnancy lasted no more than 250 days. (15) (b) If 1000 births are randomly selected, then how many of the pregnancies would be expected to last no more than 250 days? ack to 3. (a) Referring to Problem 2, at least how...
3.19 Suppose the length o human pregnancies from conception to birth varies according to a distribution that is approximately Normal with mean 272 days and standard deviation 16 days. 95% o a pregnances last between 240 and 304 days wans3[6] ans216) (3.20) According to a study, the scale of scores on an TQ test of adults is approximately Normal with mean 98 and standard deviation 16. The organization MENSA, which calls itself "the high-IQ society," requires an IQ score of...
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