For a normal distribution with a mean of 6 and a standard deviation 6, the value 9 has a z value of ___?
z-score = (X - Mean) / Standard deviation
For X = 9 , Mean = 6 and Standard deviation = 6
z = (9 - 6) / 6
= 0.5
For a normal distribution with a mean of 6 and a standard deviation 6, the value...
1) a normal distribution has a mean of 84 and standard deviation of 6 . find the z score corresponding to an x value of 76 2) a normal distribution has a mean of 55 and standard deviation of 2.7 . find the z score corresponding to an x value of 62
6. Assume that x has a normal distribution with the specified mean and standard deviation. Find the following probability: ?(10 ≤ ? ≤ 26); ? = 15, ? = 4 ___________________ Find the z-value such that 5.2% of the standard normal curve lies to the left of z. ___________________
If a normal distribution has mean 34.31 and standard deviation 1.25, then the z-value for this mean is: A) 27.45 B) 0 C) 34.31 D) 42.89
For a normal distribution with a mean of 86 and a standard deviation of 5, the value 93 has a z value of Answer . Round to 1 decimal place.
Suppose Z has a standard normal distribution with a mean of 0 and a standard deviation of 1. The probability of 0.3483 corresponds to Z value being larger than what value? 0.39 -1.81 0.00 -0.39
A normal distribution has mean 73.2 and standard deviation 3.53. Find the data value corresponding to z equals negative z=−3.99. The data value is nothing . (Round to the nearest tenth as needed.)
A normal distribution has a mean of 137 and a standard deviation of 7. Find the z-score for a data value of 121.
Consider a normal distribution with mean 25 and standard
deviation 5. What is the probability a value selected at random
from this distribution is greater than 25? (Round your answer to
two decimal places.)
Assume that x has a normal distribution with the specified
mean and standard deviation. Find the indicated probability. (Round
your answer to four decimal places.)
μ = 14.9; σ = 3.5
P(10 ≤ x ≤ 26) =
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Assume that x has a...
6. A normal distribution of has a mean of 20 and a standard deviation of 10. Find the z-scores corresponding to each of the following values: (10 points) a) What is the z score for a value of 30? b) What is the z score for a value of 10? c) What is the z score for a value of 15? d) What it P(20<x<30)? e) What is P (x > 10)? ) What is P (x < 15)? g)...
for a normal distribution with a mean 219 and a standard deviation of 40, what is the z value to be 207