For any Normal random variable, what is the probability that the variable has a value that is more than 1.5 standard deviations away from the mean? The answer should be 0.1336 but please show the working.
For any Normal random variable, what is the probability that the variable has a value that...
What is the approximate probability that in a normal distribution an observation is a) more than 2 standard deviations greater than the mean, b) more than 1 standard deviation below the mean, c) greater than 3 standard deviations away from the mean, d) and within 2 standard deviations of the mean?
Compute the probability that an exponential random variable, i.e. , takes a value more than two standard deviations more than it's mean.
A random variable follows the normal probability distribution with a mean of 100 and a standard deviation of 10. Determine the probability for a randomly selected value from this population in parts a through d below. Click here to view page 1 of the standard normal probability table. Click here to view page 2 of the standard normal probability table. a. What is the probability that the value is less than 80? The probability that the value is less than...
A random variable follows the normal probability distribution with a mean of 100 and a standard deviation of 10. Determine the probability for a randomly selected value from this population in parts a through d below. Click here to view page 1 of the standard normal probability table. Click here to view page 2 of the standard normal probability table. a. What is the probability that the value is less than 80? The probability that the value is less than...
A random variable follows the normal probability distribution with a mean of 80 and a standard deviation of 20. Determine the probability for a randomly selected value from this population in parts a through d below. a. is less than 90 b. is less than 65 c. is more than 110 d. is more than 40.
A random variable follows the normal probability distribution with a mean of 100 and a standard deviation of 10. Determine the probability for a randomly selected value from this population in parts a through d below. Click here to view.pa a. What is the probability that the value is less than 80? The probability that the value is less than 80 is (Round to four decimal places as needed.) b. What is the probability that the value is less than...
The standard normal transformation, ?=?−?x/?x, transforms any normal random variable (?) to a standard normal random variable (?), which has a mean of 0 and a variance of 1. Consider a standard continuous uniform random variable (?), which is a continuous uniform random variable with a mean of 0 and a variance of 1. What is the equation for a standard continuous uniform transformation that transforms any ?~?(?,?) to ??
The blood pressure for men aged 18 to 29 is modeled with a normal density curve. The distribution has a mean of ? = 120 and a standard deviation of ? = 10. The following is the random variable distribution with the normal density curve. Use this to answer the following questions. SHOW WORK! a. (2 point) If a man has a blood pressure of 105 how many standard deviations away from the mean is his blood pressure? b. (2...
given that z is a standard normal random variable what is the probability that z ≥ -2.12? a. 0.966 b. 0.017 c.4830 0.9830 From a population of 200 elements, a sample of 49 elements is selected. It is determined that the sample mean is 56 and the sample standard deviation is 14. The standard error of the mean is a. 3 b. 2 c. greater than 2 d. less than 2
For a Standard Normal random variable Z, calculate the probability P(-0.25 < Z < 0.25). For a Standard Normal random variable Z, calculate the probability P(-0.32 < Z < 0.32). For a Standard Normal random variable Z, calculate the probability P(-0.43 < Z < 0.43). Calculate the z-score of the specific value x = 26 of a Normal random variable X that has mean 20 and standard deviation 4. A Normal random variable X has mean 20 and standard deviation...