Kiera wanted to find the approximate number of historical books at the library she works at. she used the computer to randomly take a sample of 80 books and found that 6 of them were considered historical books. there are 21,360 books at this library. what is the best estimate of the amount of historical books at this library? a)1282 b)2136 c)17088 d)1602

For what value of x does 4x = (1/8) x + 5?

For the equations below which statement is true ? -2x=14 6x=-42

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?