Question

A teacher is setting a test for the class next week. These are the probabilities for the day of the test.
Day
Monday
Tuesday
Wednesday Thursday
Friday
Probability
10%
20%
45%
15%
Work out the probability that the test will be on:
a Monday or Tuesday b Wednesday or Thursday
c Friday
S Probability​

Answer 1

Answer:

a. 10%+20%=30%

b. 45%

c. 15%