Practical Research I Senior High Learning Guide, Summaries of Chemistry

Download Practical Research I Senior High Learning Guide and more Summaries Chemistry in PDF only on Docsity! Intro to Calc/Stats HOMEWORK, Section 2.1 Problems 1-4, True or False. If False, rewrite the statement so that it is true. Worksheet 2.1 Page 4 za 1. Ina frequency distribution, the class width is the difference between the lower-and-upper limits of a class rE 3 2. The midpoint of a class is the sum of its lower and upper limits divided by two. : 3.) An ogive is a graph that displays relgtive frequencies. J 4. Class boundaries are used to ensure that consecutive bars of a histogram touch. Capoten. f ‘ ae a 5. Three frequency distributions shown below have been constructed incorrectly. State the reason why each is of incorrect. Class f 27-32 * 33-38 Class f 58 Class f 123-127. 3 128- ABB-1H2 2 143-147 19 6. Adata set representing the amount {in dollars) spent on books for a semester is shown below. Using 3 classes, construct a frequency distribution for the data. Also show the class boundaries, midpoints, relative frequencies and cumulative frequencies. Which class has the greatest frequency and which has the least frequency? g1 472 279 249 530 376 188 341 266 199 142 273 189 130 439 266 248 101 375 A486 190 398 183 269 43 30 127 354 84 Class f Class boundary Midpoint | Relative Cumulative frequency frequency