2. A reading exam was conducted for 4th grade children and 9th grade children. The 4th grade children have a mean of 25 and standard deviation of 5. The 9th grade children have a mean of 30 and...


2. A reading exam was conducted for 4th grade children and 9th grade children. The 4th grade children<br>have a mean of 25 and standard deviation of 5. The 9th grade children have a mean of 30 and standard<br>deviation of 10.<br>a. What percentage of 4th grade children score better than the average 9th grade children?<br>b. What percentage of 9th grade children score worse than the average 4th grade children?<br>

Extracted text: 2. A reading exam was conducted for 4th grade children and 9th grade children. The 4th grade children have a mean of 25 and standard deviation of 5. The 9th grade children have a mean of 30 and standard deviation of 10. a. What percentage of 4th grade children score better than the average 9th grade children? b. What percentage of 9th grade children score worse than the average 4th grade children?

Jun 03, 2022
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