d. In the frequency distribution of 90 students given below, the number of students corresponding to marks classes 36 – 54 and 72 – 90 are missing. However, the median is known to be 48.24. Marks 0-18...

Extracted text: d. In the frequency distribution of 90 students given below, the number of students corresponding to marks classes 36 – 54 and 72 – 90 are missing. However, the median is known to be 48.24. Marks 0-18 18-36 36-54 54-72 72-90 90-108 No. of students 8 20 12 f2 19 Find the missing frequencies f, and f, and then compute the mean, mode, lower quartile, upper quartile, and eight decile.