Consider a source that emits six symbols x1 x2 ) with probabilities 0.3. 0.25, 0.2, 0.1, 0.1 and 0.05 respectively. (i) construct a shannon-fano code for this source. [12 marks] (ii) calculate the average codeword length. [4 marks] (iii) calculate the entropy of the source. [4 marks] (iv) calculate the coding efficiency of the source.

Which of the statements below is true? the formatting, standard, and drawing commands are unavailable. the formatting, standard, and drawing commands have been used. the formatting, standard, and drawing toolbars are displayed. the formatting, standard, and drawing toolbars are hidden.

Write a program that reads a file consisting of students’ test scores in the range 0–200. it should then determine the number of students having scores in each of the following ranges: 0–24, 25–49, 50–74, 75–99, 100–124, 125–149, 150–174, and 175–200. output the score ranges and the number of students. (run your program with the following input data: 76, 89, 150, 135, 200, 76, 12, 100, 150, 28, 178, 189, 167, 200, 175, 150, 87, 99, 129, 149, 176, 200, 87, 35, 157, 189.)

Alcohol’s affects on the cornea and lens of the eye make it more difficult