Suppose X is a normally distributed random variable with mean 67 and standard deviation 13. Then P ( 47 ≤ X ≤ 84 ) is roughly
Suppose X is a normally distributed random variable with mean 67 and standard deviation 13. Then...
Assume the random variable x is normally distributed with mean u = 80 and standard deviation ou 4. Find the indicated probability. P(67<x<73) P(67<x< 73)- (Round to four decimal places as needed.)
Assume the random variable x is normally distributed with mean u = 84 and standard deviation o =5 . Find the indicated probability P(70<x79) =
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]
Assume the random variable x is normally distributed with mean u 84 and standard deviation o 5. Find the indicated probability. P(x< 81) P(x <81)(Round to four decimal places as needed.)
Suppose a random variable X is normally distributed with mean 66 and standard deviation 7.6. Answer the following questions: a) P(46.24 < X < 71.32) = b) P(X ? 75.12) = c) P(X = 71.32) = d) Suppose a is such that: P(X ? a) = 0.56. Then a = e) What is the IQR (inter-quartle range) of X?
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.
Assume that the random variable X is normally distributed, with mean and standard deviation Compute the probability P(17 < X < 65).
Assume that the random variable X is normally distributed, with mean is 110 and standard deviation is 10. Compute the probability P(X > 118).
Assume the random variable x is normally distributed with mean y = 50 and standard deviation o=7. Find the indicated probability P(x > 40) P(x >40) - (Round to four decimal places as needed.) Assume the random variable x is normally distributed with mean = 88 and standard deviation o = 4. Find the indicated probability P(76<x<85) P(76<x<85)= (Round to four decimal places as needed.) Assume a member is selected at random from the population represented by the graph. Find...
X is a normally distributed random variable with a mean of 7.0 and a standard deviation of 3.00. Find the value x such that P(X < x) is equal to 0.86. (Note: the diagram is not necessarily to scale.) 10.24 11.63 7.00 8.14