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Extra info for Basic Math and Pre-Algebra. Cliffs Quick Review
25 40 46 30 34 27 45 38 37 47 36 58 40 22 30 29 46 29 56 37 40 44 46 56 38 50 19 47 49 23 50 CHAP. 3 The total number of 911 emergency calls classified as domestic disturbance calls last year in a large metropolitan location was 14,950. Find the mean number of such calls per 24-hour period if last year was not a leap year. 0 The median of a set of data is a value that divides the bottom 50% of the data from the top 50% of the data. To find the median of a data set, first arrange the data in increasing order.
40 Number of citations 10 11 14 16 17 20 Frequency 5 7 10 x 3 3 Ans. 37. 39. CHAP. 37 Ans. 41. 41 to answer the following questions. 0 minutes? 0 or more minutes? 0 minutes? Ans. 41. Ans. 42. 41. 42. 47 The number of calls per 24-hour period to a 911 emergency number is recorded for 50 such periods. 43. Construct a stem-and-leaf display for these data. 43 660 456 234 435 675 805 346 225 505 578 [CHAP. 2 765 501 597 456 525 586 514 524 707 286 589 543 521 678 453 267 508 465 556 531 Ans. See Fig.
3. When possible, all classes should be of equal width. 7 Group the following weights into the classes 100 to under 125, 125 to under 150, and so forth: 111 161 185 245 120 165 185 248 127 167 190 129 170 195 130 171 195 145 174 201 145 175 210 150 177 220 153 179 224 155 180 225 160 180 230 The weights 111 and 120 are tallied into the class 100 to under 125. The weights 127, 129, 130, 145, and 145 are tallied into the class 125 to under 150 and so forth until the frequencies for all classes are found.