chapter 3

CHAPTER 3 1. A bus is design to carry a maximum load of 2,100 lbs. is it over loaded if at one time, it is loaded with 9men whose mean weight is 182 lbs. and 6 women whose mean weight is 131 lbs.? 2. A consumer testing company performed 6 test runs as the number of kilometers per lite consumed by the 3 latest passenger jeepney models. The results were as follows: (a) Jeep 1 7.2, 6.9, 8.5, 9.6, 10.8, 11.2 (b) Jeep 2 9.2, 11.90, 7.5, 8.1, 6.2, 9.0 (c) Jeep 3 8.6, 10.9, 11.0, 9.0, 6.1, 8.1 Which passenger Jeepney model performed best in the test 3. A study conducted on the records of the Land Transportation Office (LTO) shows 20 drivers belonging to 18-23 age groups received traffic violation receipt (TVR) for the first quarter of the year. The 4, 2, 3, 1, 0, 1, 2, 4, 4, 2, 0, 0, 2, 1, 3, 4, 4, 3, 2, 1. Find the mode. Describe the kind of drivers in this particular age group based on the recorded data. 4. In determining the refractive index of a volatile oil, 40ovserbatons were made at 22"C and the following values were recorded. Compute for the mean, median and mode. 5. The following is the frequency distribution of the weights of 100 expectant mothers admitted in a hospital during a week Weight (lbs) frequency 150-159 3 140-149 12 130-139 19 120-129 28 110-119 26 100-109 10 90-99 2 100 (a). Draw a histogram of the distribution. (b). Draw a frequency polygon of the distribution