b) Most students made right around the mean of 75. C) There was a balanced amount of A's, B's, C's, D's, and F's. d) Half of the grades were below 75 and half above. Additional discussion topic for this question: When you think of a test average of 75, what automatically comes to your cadoe? For most of me the average of 75 does not fit the mold of what we believe an average of 75 means. 10. The mean SAT verbal score is 462, with a standard deviation of 98. Use the Empirical Rule to determine where: a) Approximately 95% of the students score. (Assume the data set has a bell-shaped dis- tribution.) b) From part a, we can furthermore state that the lowest 2.5% of scores are below and the highest 2.5% of scores are above approximately. 11. The mean monthly rent for a sample of studio apartments in one city is $1200 with a stan- dard deviation of $210. The monthly rents for eight more studio apartments in the city are list- ed. Using the sample statistics above, determine which of the data values are unusual (out- side two standard deviations). Are any of the data values very unusual (outside three standard deviations)? Explain. (Assume the data set has a bell-shaped distribution.) $1074, $1536, $1641, $528, $801, $1662, $1347, $696 of his major league base