3394. Category: (Mathematical Calculation) *Paper: ()*

The following marks were obtained by 32 students in a physics examination:

32, 35, 42, 50, 46, 29, 39, 38, 45, 37, 48, 52, 37, 58, 52, 48, 36, 54, 37, 42, 64, 37, 34, 28, 58, 64, 34, 57, 54, 62, 48, 67.

(a) Prepare a frequency distribution table using the class intervals: 24 29, 30 35 etc.

(b) Draw the histogram.

(c) Draw the cumulative frequency curve and use it to estimate the median.

(d) Find the mean mark.