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1. Given the following frequency distribution, compute for the following: Class Frequency (d) (fd) (F) Intervals (D) 58-59 10 60-61 14 62-63 26 64-65 35 66-67 23 68-69 19 70-71 15 72-73 6 a. Mean b. Median c. Mode d. Quartile e. Quartile 3 f. Decile 7 g. Decile 8 h. Percentile 88INSTRUCTIONS: Solye the following problems. Show pertinent solutions. 2. The follcnying are the ages of the students who enrolled in a certain college. 19,21,18,1?,1B,21,2,18,19,19 Determine the mean age. 3. The rate per hour [in pesos} ot the employees of a certain company were taken and are shown below. 44.11 441?, 35, 55.25, 15, 15, 511?, 55.25, 441?, 39.5 a. Determine the yalue of the mean, median, mode. I]. If the yalue 39.25 was erroneously written whose actual yalue is 49.25, then what measure of central tendency will be affected? Support your answer. 4. The final grades of a student in his subjects where he was enrolled were taken and shown below. Subject No. of Units Final grade Math 1 2.5 Lab Science 1.5 English 1 2.25 Com Lab 3.0 Filipino 2.25 Accounting 1 2.5 a. Determine his weighted mean grade. b. If the subjects were of equal number of units, what would be his average?5. 4. Consider the following frequency distribution below. Classes 11-21 22-32 23 33-43 31 44-54 40 55-65 43 66-76 45 77-87 15 88-98 6 Determine the value of the mean using the a. Midpoint method b. Unit Deviation methodB. The results of an IQ test of a group of students in a certain college were taken and are presented in a frequency distribution. Classes I TITLE 2 ii 3 823? 19 82413 21 9499 23 100-1 [)5 33 10111 15 112-11? 9 l. Using the frequency distribution aboye; determine the follmying: a} size of the class interval; b) median class; c} lower boundary of the median class; {1) midpoint of the median class; e) upper limit of the median class; f] modal class; g] lower limit of the modal class; h} number of students with an IQ greater than 99.5; i} midpoint of the modal class. II. Compute the 1iralue of the mean; median; and mode