SOLUTION: The standard normal table shows an area value of 0.1 for a z-score of 0.25 and an area value of 0.35 for a z-score of 1.04. What percentage of the observations of a random variable

Question 76130: The standard normal table shows an area value of 0.1 for a z-score of 0.25 and an area value of 0.35 for a z-score of 1.04. What percentage of the observations of a random variable that is normally distributed will fall between 0.25 standard deviations below the mean and 1.04 standard deviations above the mean?
a. 25%
b. 35%
c. 45%
d. 55%
Thank You!

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
The standard normal table shows an area value of 0.1 for a z-score of 0.25 and an area value of 0.35 for a z-score of 1.04. What percentage of the observations of a random variable that is normally distributed will fall between 0.25 standard deviations below the mean and 1.04 standard deviations above the mean?
--------
35% of the area is over the interval (0,1.04)
10% of the area is over the interval (0,0,25)
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Therefore the area over the interval (0.25,1.04) is 35%-10%=25%
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Cheers,
Stan H.
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