Question

$10,000 12,000 8,000 Number Model grams of fat per ounce of meat or fish that a would consume over a 5-day period if heat sno Meat or fish 27. Using the weighted mean, find the average Fat (gloz) 3 oz fried shrimp 3 oz veal cutlet (broiled) 2 oz roast beef (lean) 2.5 oz fried chicken drumstick 4 oz tuna (canned in oil) Source The World 4.40 41-4 Almanoc and Book of Facts eaned in dollars) by 100 salespeople employed at several hranches of a large chain store following percentages of people who liked the Find the weighted mean of the percentages Area 2This frenency distriution represents the commission 28. A recent survey of a new diet cola reported the Class limits Frequency 150-158 159-167 168-176 177-185 Number surveyed 1000 3000 % Favored 40 21 186-194 ts of three models of helicopters are shown he weighted mean of the costs of the models 15 204-212 29. The cost Find the 21. This freguency distribution represents th Number sold from a sample of 75 copying machine service techni cians. The values represent the days between service calls for various copying machines. Class boundaries Model Sunscraper Skycoaster High-flyer $427 0 365 90 725. 30 Frequency 12 15.5-18.5 14 12 18 30. An instructor grades exams, 20%; term papel 18.5-21.5 21.5-24.5 24.5-27.5 27.5-30.5 r .)%; final exam, 50%. A student had grades of 83. , and 9 respectively, for exams, term paper, and final e im. Find the student's final average. Use the weighted mean. 15 30.5-33.5 22. Find the mean and modal class for the data in Exercise 12 31. Another instructor gives four 1-hour exams and one final exam, which counts as two 1-hour exams. Find a student's grade if she received 62, 83, 97, and 90 on the 1-hour exams and 82 on the final exam. in Section 2-2. 23. Find the mean and modal class for the data in Exercise 13 in Section 2-2. 32. For these situations, state which measure of central 24. Find the mean and modal clss orthe data in Exercise 14 a. tendency-mean, median, or mode--should be used. in Section 2-2 25. Find the mean and modal class for the data in Exercise 15 The most typical case is desired. b. The distribution is open-ended. c. There is an extreme value in the data set. d. The data are categorical. e. Further statistical computations will be needed. f The values are to be divided into two approximately in Section 2-2 26. Find the weighted mean price of three models of automobiles sold. The number and price of each model sold are shown in this list. equal groups, one group containing the larger valu and one containing the smaller values. 3-18

question 21,27 and 29.
Thanks.

Answer 1

Answer:

lhe 0. 75 cpy machine Sedvice techoicions.TAvae aaponsents dhe cloys between ses vice alls fa vasou c97 acht nes Closs 5. 5-18. 5 5 07.5 o 75 30.5 15 30-5 33.5 6 the hmits andn by 15.5-19. 5 | ,4 |15S4125 s-a50 335 30.5 3356

Closs 15.5-1951 -r 1국 38 5-24 03 a6 S-305S 435 S-33 30 1901 h the ef ethe rean rid port cad class The mean days

-75 4.99+9.00+5 0047.60 14-5 41 99 145 Eni R子 14733,000 孑 ニ-$545,666.4