14. The number of major earthquakes in a year forms an approximately normally distributed with...
14. The number of major earthquakes in a year forms an approximately normally distributed with a mean of 20.8 and a standard deviation of 4.5.
a) Find the probability that in a given year there will be less than 21 earthquakes.
b) Find the probability that in a given year there will be between 18 and 23 earthquakes
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14. The number of
major earthquakes in a year forms an approximately normally
distributed with...
please answer all parts. Since 1900, the magnitude of earthquakes in California is approximately normally distributed...
please answer all parts.
Since 1900, the magnitude of earthquakes in California is approximately normally distributed with a mean of 6.42 and a standard deviation of 1, according to data obtained from the United States Geological Survey. a. What is the probability a randomly selected California earthquake has a magnitude of 6.1 or greater? o probability b, Earthquakes in the top 23% are categorized as severe. What magnitude corresponds to a severe earthquake? o magnitude-
please answer all parts. Since 1900, the magnitude of earthquakes in California is approximately normally distributed...
please answer all parts.
Since 1900, the magnitude of earthquakes in California is approximately normally distributed with a mean of 6.21 and a standard deviation of 0.85, according to data obtained from the United States Geological Survey. a. What is the probability a randomly selected California earthquake has a magnitude of 6.9 or greater? o probability b. Earthquakes in the top 17% are categorized as severe. What magnitude corresponds to a severe earthquake magnitude-
please answer all parts Since 1900, the magnitude of earthquakes in California is approximately normally distributed...
please answer all parts
Since 1900, the magnitude of earthquakes in California is approximately normally distributed with a mean of 6.27 and a standard deviation of 0.69, according to data obtained from the United States Geological Survey. a. What is the probability a randomly selected California earthquake has a magnitude of 5.9 or greater? o probability b. Earthquakes in the top 20% are categorized as severe. What magnitude corresponds to a severe earthquake? o magnitude
The mean annual rainfall in a local city is approximately normally distributed with the a mean...
The mean annual rainfall in a local city is approximately normally distributed with the a mean of 14 inches and a standard deviation of 1.5 inches. What is the probability that the annual rainfall will.. a.) Exceed 12 inches b.) Be less than 16 inches c.) Be between 16 and 20 inches
Suppose the heights of 18-year-old men are approximately normally distributed, with mean 68 inches and standard...
Suppose the heights of 18-year-old men are approximately normally distributed, with mean 68 inches and standard deviation 3 inches. (a) Find the percentage of 18 year old men with height between 67 and 69 inches. (b) Find the percentage of 18 year old men taller than 6 foot. (c) if a random sample of nine 18 year old men is selected, what is the probability that their mean height is between 68 and 72 inches? (d) if a random sample...
The number of vacation days taken by the employees of a company is normally distributed with...
The number of vacation days taken by the employees of a company is normally distributed with a mean of 14 days and a standard deviation of 3 days. Is this a case of sample standard deviation or population standard deviation? What are some differences between sample standard deviation and population standard deviation? For the next employee, what is the probability that the number of days of vacation taken is less than 10 days? What is the probability that the number...
Assume that the Richter scale magnitudes of earthquakes are normally distributed with a mean of 1134...
Assume that the Richter scale magnitudes of earthquakes are normally distributed with a mean of 1134 and a standard deviation of 0571 Complete parts a through below a. Earthquakes with magnitudes less than 2.000 are considered "microcarthquakes that are not telt. What percentage of earthquakes fall into this category? (Round to two decimal places as needed.)
Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed with mean...
Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed with mean Complete parts (a) and (b) below. 212 days and standard deviation o 19 days (a) What is the probability that a random sample of 18 pregnancies has a mean gestation period of 206 days or less? needed) The probability that the mean of a random sample of 18 pregnancies is less than 206 days is approximately (Round to four decimal places as needed) (b)...
Suppose it is known that heights of 8 year old Unrisunas trees are approximately normally distributed...
Suppose it is known that heights of 8 year old Unrisunas trees are approximately normally distributed with a mean of 75.5" and standard deviation or = 8.3". [5 pts) What is the probability that a randomly selected tree is taller than 74”? [2 pts] If we sample 14 of those trees, what is the standard deviation of the distribution of sample means for this sample? [4 pts] If you sample 14 trees, what is the probability that the mean height...
the high tempature in chicago for month of august is approximately normally distributed with mean 80...
the high tempature in chicago for month of august is approximately
normally distributed with mean 80 f and standard deviation of 8
f
2. The high temperature in Chicago for the month of August is approximately normally distributed with mean u = 80° F and standard deviation o = 8' F. a. What is the probability that a randomly selected day in August has a high temperature less than 78°F ? b. What is the probability that a random sample...
please answer all parts.
Since 1900, the magnitude of earthquakes in California is approximately normally distributed with a mean of 6.42 and a standard deviation of 1, according to data obtained from the United States Geological Survey. a. What is the probability a randomly selected California earthquake has a magnitude of 6.1 or greater? o probability b, Earthquakes in the top 23% are categorized as severe. What magnitude corresponds to a severe earthquake? o magnitude-
please answer all parts.
Since 1900, the magnitude of earthquakes in California is approximately normally distributed with a mean of 6.21 and a standard deviation of 0.85, according to data obtained from the United States Geological Survey. a. What is the probability a randomly selected California earthquake has a magnitude of 6.9 or greater? o probability b. Earthquakes in the top 17% are categorized as severe. What magnitude corresponds to a severe earthquake magnitude-
please answer all parts
Since 1900, the magnitude of earthquakes in California is approximately normally distributed with a mean of 6.27 and a standard deviation of 0.69, according to data obtained from the United States Geological Survey. a. What is the probability a randomly selected California earthquake has a magnitude of 5.9 or greater? o probability b. Earthquakes in the top 20% are categorized as severe. What magnitude corresponds to a severe earthquake? o magnitude
Assume that the Richter scale magnitudes of earthquakes are normally distributed with a mean of 1134 and a standard deviation of 0571 Complete parts a through below a. Earthquakes with magnitudes less than 2.000 are considered "microcarthquakes that are not telt. What percentage of earthquakes fall into this category? (Round to two decimal places as needed.)
Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed with mean Complete parts (a) and (b) below. 212 days and standard deviation o 19 days (a) What is the probability that a random sample of 18 pregnancies has a mean gestation period of 206 days or less? needed) The probability that the mean of a random sample of 18 pregnancies is less than 206 days is approximately (Round to four decimal places as needed) (b)...
Suppose it is known that heights of 8 year old Unrisunas trees are approximately normally distributed with a mean of 75.5" and standard deviation or = 8.3". [5 pts) What is the probability that a randomly selected tree is taller than 74”? [2 pts] If we sample 14 of those trees, what is the standard deviation of the distribution of sample means for this sample? [4 pts] If you sample 14 trees, what is the probability that the mean height...
the high tempature in chicago for month of august is approximately
normally distributed with mean 80 f and standard deviation of 8
f
2. The high temperature in Chicago for the month of August is approximately normally distributed with mean u = 80° F and standard deviation o = 8' F. a. What is the probability that a randomly selected day in August has a high temperature less than 78°F ? b. What is the probability that a random sample...
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