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2. Suppose that the normally distributed random variable X has mean and standard deviation a. Calculate...
A random variable X is normally distributed with a mean of 2 and a standard deviation...
A random variable X is normally distributed with a mean of 2 and a standard deviation of 1.4. Calculate the point c such that P ( X ≥ c ) = 0.5.
A variable x is normally distributed with mean 22 and standard deviation 9. Round your answers...
A variable x is normally distributed with mean 22 and standard deviation 9. Round your answers to the nearest hundredth as needed. a) Determine the z -score for x = 26 . z = b) Determine the z -score for x = 17 . z = c) What value of x has a z -score of 0.67 ? x = d) What value of x has a z -score of − 0.4 ? x = e) What value of x...
6.33 Let x be a continuous random variable that is normally distributed with a mean of 25 and a standard deviation o...
6.33 Let x be a continuous random variable that is normally distributed with a mean of 25 and a standard deviation of 6. Find the probability that x assumes a value a. between 28 and 34 b. between 20 and 35 6.34 Let x be a continuous random variable that has a normal distribution with a mean of 30 and a stan- dard deviation of 2. Find the probability that x assumes a value a. between 29 and 35 b....
Suppose X is a normally distributed random variable with mean 67 and standard deviation 13. Then...
Suppose X is a normally distributed random variable with mean 67 and standard deviation 13. Then P ( 47 ≤ X ≤ 84 ) is roughly
Suppose a random variable has mean 10 and standard deviation 3. What is the value of...
Suppose a random variable has mean 10 and standard deviation 3. What is the value of the random variable which corresponds to a z-score of 2? SUBMIT ANSWER
A variable xx is normally distributed with mean 22 and standard deviation 5. Round your answers...
A variable xx is normally distributed with mean 22 and standard deviation 5. Round your answers to the nearest hundredth as needed. a) Determine the z-score for x=28. b) Determine the z-score for x=18. c) What value of x has a z-score of 1.4? d) What value of x has a z-score of -0.4?
assume that the random variable x is normally distributed with mean 51 and standard deviation 11...
assume that the random variable x is normally distributed with
mean 51 and standard deviation 11
ut the random variable is may buted with mean 51 and standard deviation 11. Compute the probability. Be sure to draw a normal curve with the coming Which of the shaded regions corresponds to POX 4112 DB ос ST PX41-
Suppose a random variable is normally distributed with a mean of 400 and a standard deviation...
Suppose a random variable is normally distributed with a mean of 400 and a standard deviation of 100. a)Draw a normal curve with the parameters labeled. b)Shade the region under the normal curve that represents the probability of observing a value of the random variable that is less than 600. c)Suppose the area under the normal curve below 600 is 0.9772. Provide two interpretations of this area.
Suppose a random variable X is normally distributed with mean 69.8 and standard deviation 8. Answer...
Suppose a random variable X is normally distributed with mean 69.8 and standard deviation 8. Answer the following questions: P(X = 74.60) = ? [round to 4 decimal places]
A Normal random variable X has mean 20 and standard deviation 4. Calculate the probability that...
A Normal random variable X has mean 20 and standard deviation 4. Calculate the probability that specific values of X exceed 26. Calculate the 36th percentile of a Standard Normal random variable. A Standard Normal random variable Z falls within an interval of values centered around zero, that is the interval -z to z, with probability 0.6. Calculate the value of z that defines that interval. A truck makes daily round trips between Charlotte and Atlanta. On 30 percent of...
6.33 Let x be a continuous random variable that is normally distributed with a mean of 25 and a standard deviation of 6. Find the probability that x assumes a value a. between 28 and 34 b. between 20 and 35 6.34 Let x be a continuous random variable that has a normal distribution with a mean of 30 and a stan- dard deviation of 2. Find the probability that x assumes a value a. between 29 and 35 b....
Suppose a random variable has mean 10 and standard deviation 3. What is the value of the random variable which corresponds to a z-score of 2? SUBMIT ANSWER
assume that the random variable x is normally distributed with
mean 51 and standard deviation 11
ut the random variable is may buted with mean 51 and standard deviation 11. Compute the probability. Be sure to draw a normal curve with the coming Which of the shaded regions corresponds to POX 4112 DB ос ST PX41-
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