We assume that the ages of university students are normally distributed. The average age of UAGM students is 26 years with a standard deviation of 3 years. A student is selected at random. What is the probability that you are under 23? What is the probability that you are over 32 years old? What is the probability that he is between 23 and 32 years old?
We assume that the ages of university students are normally distributed. The average age of UAGM...
In a university class that includes 120 students, mostly non-traditional, the Mean age is 32, with a standard deviation 12 students, and with a normal distribution. Six of these students are international students What is the probability that, if one student is picked at a random, he/she be a teenager (12 to 19 years old)? You need to (somewhat) critically think about this before tackling it!! 1. What is the probability that if ONE student is selected at random, he/she...
In a university class that includes 120 students, mostly non-traditional, the Mean age is 32, with a standard deviation 12 students, and with a narmal distribution. Six of these students are international students. What is the probability that, if one student is picked at a random, he/she be a teenager (12 to 19 years old)? You need to (somewhat) critically think about this before tackling it!! 1. 2. What is the probability that if ONE student is selected at random,...
There are 10,000 students at the University of Tennessee at Chattanooga. The average age of all the students is 25 years with a standard deviation of 5 years. A random sample of 49 students is selected. What is the probability that the sample mean will be between 24 and 27 years?
Lets say that ages in this class are distributed normally with a mean of 19 and a standard deviation of 2, what does this mean? Using this data what is the likelihood that any randomly selected group of five students has an average age of 20 or older. With the same data lets now assume that the class is a random sample of all University level classes and that there are 50 people in the class. What is the 95%...
In a standard university class that includes 120 students, mostly non-traditional, the Mean age is 32, with a standard deviation 12 students, and with a normal distribution. Six of these students are international students. 1. What is the probability that, if one student is picked at random he/she be a teenager (12 to 19 years old)? You need to (somewhat) critically think about this before tackling it! Show you work.
the average age of a student in graduate is normally distributed with a mean of 28 years of age and a standard deviation of 3 years of age. what percent of graduate students are at least 34 years old? possible answers are 1. 0,15% 2. 2.35% 3. 2.50% 4. 97.5% 5. None of the above
Ages of Proofreaders At a large publishing company, the mean age of proofreaders is 36.2 years and the standard deviation is 3.7 years. Assume the variable is normally distributed. a. What percentage of the company's proofreaders are between 36 and 37.5 years old? b. If a random sample of 15 proofreaders is selected, find the probability that the mean age of the proofreaders in the sample will be between 36 and 37.5 years.
1. A local historian knows that the age of artifacts in his library is Normally distributed with an average of 76 years old with a standard deviation of 14 years. (a) Determine the probability a randomly selected artifact has an age over 90 years old. (b) Determine the probability that the average of 2 randomly selected artifacts has an age over 90 years old. (c) Determine the probability that the average of 3 randomly selected artifacts has an age over...
The ages of commercial aircraft are normally distributed with a mean of 13.5 years and a standard deviation of 6.9436 years. What percentage of individual aircraft have ages between 9 years and 15 years? Assume that a random sample of 64 aircraft is selected and the mean age of the sample is computed. What percentage of sample means have ages between 9 years and 15 years?
The ages of commercial aircraft are normally distributed with a mean of 13.5 years and a standard deviation of 8.1455 years. What percentage of individual aircraft have ages between 11 years and 17 years? Assume that a random sample of 81 aircraft is selected and the mean age of the sample is computed. What percentage of sample means have ages between 11 years and 17 years?