Answer the following question. Draw the curve and solve for the unknown. 1. To help students improve their reading skills, a school administrator decides to implement a reading program. It is to be...

Extracted text: Answer the following question. Draw the curve and solve for the unknown. 1. To help students improve their reading skills, a school administrator decides to implement a reading program. It is to be determined to the bottom 5% of the students in the school, based on the scores on a reading comprehension exam. If the average score for the students in the school is 122.6, find the cut-off score that will make a student eligible for the program. The standard deviation is 18. Assume that the variable is normally distributed. 2. The scores on a nationwide aptitude examination for Science and Technology are normally distributed, with u=78 and o=10. What is the percentile rank of a score of 88? 3. On the major examination in Statistics and Probability, a teacher gives a remark of Excellent to students who score between 90 and 95. The score of the examination has approximately a normal distribution with an average of 84 and a standard deviation of 8. About what proportion of students get a mark of Excellent?