A class took an English test and a Math test. The test scores of 25 students for both tests are given below:

English test score:60, 35, 80, 88, 76, 30, 66, 50, 75, 78, 56, 50, 80, 47, 90, 78, 95, 75, 82, 86, 78, 72, 69, 55, 50.

Math test score:80, 40, 45, 85, 90, 95, 65, 75,55, 33, 86, 85, 70, 78, 55, 60, 65, 69, 45, 55, 90, 95, 85, 70, 80.

a) Find out the five number summary for the datasets above.

b) Develop a box and whisker plot for the test scores of English and Math. What conclusion can you make about the students' performance?