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1. What is the z-score associated with the 75th percentile? 2. What z-scores bound the middle...

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Basic Math

1. What is the z-score associated with the 75th percentile?

2. What z-scores bound the middle 50% of a normaldistribution?

3. What z-score has 10% of the distribution above it?

4. What z-score has 20% of the distribution below it?

5. Reading comprehension scores for junior high students arenormally distributed with a mean of80.0 and a standard deviation of5.0.
a. What percent of students have scores greater than 87.5?

b. What percent of students have scores between 75 and 85

Answer & Explanation Solved by verified expert
4.5 Ratings (733 Votes)
Solution Given thatUsing standard normal table 1PZ z 75PZ 0674 075z    See Answer
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