Chapter 6: Q.9 (page 385)
What does standardizing a normal distribution do to the mean?
Short Answer
When you standardize a normal distribution, the mean becomes 0 and the standard deviation becomes 1
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Chapter 6: Q.9 (page 385)
What does standardizing a normal distribution do to the mean?
When you standardize a normal distribution, the mean becomes 0 and the standard deviation becomes 1
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The golf scores for a school team were normally distributed with a mean of and a standard deviation of three.
Find the probability that a golfer scored between and
Suppose X ~ N(2, 3). What value of x has a z-score of –0.67?
About what percent of x values from a normal distribution lie within one standard deviation (left and right) of the mean of that distribution?
The life of Sunshine CD players is normally distributed with a mean of years and a standard deviation of years. A CD player is guaranteed for three years
Find the percentile of the distribution for the time a CD player lasts
a. Sketch the situation. Label and scale the axes. Shade the region corresponding to the lower .

b. Therefore,
What is the z-score of x= –, if it is standard deviations to the right of the mean?
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