Suppose that blood chloride concentration(mmol/L) has a normal distribution with

Question

Suppose that blood chloride concentration(mmol/L) has a normal distribution with mean 107 and standard deviation 6.
a. Find the probability that chloride concentration
equals 108=....... Is less than 108 = .......
Round to 4 decimal places.

b. What is the probability that chloride concentration differs from the mean by more than 1.5 standard deviations?.........
Round to 4 decimal places.


c. How would you characterize the most extreme .1% of chloride concentration values?............

Chloride concentration values must be
more than........ or less than .........
Round to 2 decimal places.

Explanation / Answer

From normal probabilities calculator:

a) P(X = 108) = 0

P(X < 108) = 0.5662

b) P(Differs more than 1.5 standard deviations)

= 1 - P(Within 1.5 standard deviations)

= 1 - 0.8664

= 0.1336

c) Chloride concentration values must be more than 125.54 or less than 88.46

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