The accompanying

The accompanying table gives the probability distribution of the number of courses randomly selected student has registered
Number of courses 1 2 3 4 5 6 7
Probability 0.02 0.03 0.1 0.3 0.4 - 0.01 respectively.

a) Find the probability of a student registering 6 courses
b) What is the probability that a randomly selected student has registered at least 5 courses

Correct result:

p1 =  0.4
p2 =  0.71

Solution:

p1=0.4=25
p2=0.3+0.4+0.01=71100=0.71



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