Flood discharges (m3/s) observed in a stream for 40 years are given below arranged in an increasing order 590 610 625 630 640 640 665 675 680 685 690 690 690 695 710 715 720 720 725 725 730 730 730 735 735 740 740 745 755 760 765 770 780 795 805 815 825 825 835 875 a. Plot the histogram, frequency histogram and cumulative frequency histogram by classifying the data into appropriate intervals. b. What is the frequency of having flood discharges value greater than 740 (m3/s) ? c. Find the mean, mode and media. Discuss whether the distribution is normal or not? d. Calculate the Csx and kx. Discuss whether the distribution is normal or not? e. Calculate the standard deviation and discuss the distribution of data