500 juniors at PRHS took the ACT last year. The scores were distributed normally with a mean of 24 and a standard deviation of 4. 1. What is the probability of a student's score being between a 16 and a 32? 2. What percent of students scored at least a 28? 3. Approximately how many students scored higher than a 32?

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500 juniors at PRHS took the ACT last year. The scores were distributed
normally with a mean of 24 and a standard deviation of 4.
1. What is the probability of a student's score being between a 16 and a 32?
2. What percent of students scored at least a 28?
3. Approximately how many students scored higher than a 32?
4. What is the probability of a student scoring higher than a 17? (Hint: use
your calculator).
5. Approximately how many students scored between an 18 and a 29? (Hint:
use your calculator).
Transcribed Image Text:500 juniors at PRHS took the ACT last year. The scores were distributed normally with a mean of 24 and a standard deviation of 4. 1. What is the probability of a student's score being between a 16 and a 32? 2. What percent of students scored at least a 28? 3. Approximately how many students scored higher than a 32? 4. What is the probability of a student scoring higher than a 17? (Hint: use your calculator). 5. Approximately how many students scored between an 18 and a 29? (Hint: use your calculator).
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