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the frequency distribution below to answer items 10 to 15. Scores Frequency 60-64 1 65-69 1 5 70-74 6 8 75-79 14 11 80-84 25 12 85-89 37 10 90-94 47 55 95-99 5 what is the lower class boundary ( for the interval 75-79? 4. 74:5 b. 75.5 c 79.5 d. . What is the cumulative frequency of for the interval 75-79? b. 14 C 25 d. If we determine the lower quartile Q, which formula will give the answer? 1 Q =4+ 4 i= 69.5+ 15-6 15 8 15-6 II. Q. =1+ 4 i = 74.5+ 15 811 0 -14 4 1 74.54 15-11 8 15-14 1 =74.54 11 IV. Q =1 + b. II d. 13. What is the value of Q? b. 77:00 12 019 1 0up 2 75.13 c. 80.13 d. 14. To get the value of Q, we need to know first the value of what expression? L II. III. IV. 0.80 I b. II C. III d. 15. What is the value of Q ? 88.5 b. 88.0 C. 87.5 d