A school bought 296 books for their 3rd, 4th and 5th grade classes. 3rd grade has 4 classes, 4th grade has 5 classes, and 5th grade has 4 classes. The books were distributed evenly between the 3rd and 4th grade classes. The remaining was distributed evenly between the 5th grade classes. How many books did the 5th graders get?

Lems1. the following data set represents the scores on intelligence quotient(iq) examinations of 40 sixth-grade students at a particular school: 114, 122, 103, 118, 99, 105, 134, 125, 117, 106, 109, 104, 111, 127,133, 111, 117, 103, 120, 98, 100, 130, 141, 119, 128, 106, 109, 115,113, 121, 100, 130, 125, 117, 119, 113, 104, 108, 110, 102(a) present this data set in a frequency histogram.(b) which class interval contains the greatest number of data values? (c) is there a roughly equal number of data in each class interval? (d) does the histogram appear to be approximately symmetric? if so,about which interval is it approximately symmetric?