Three students, Alice, Betty and Carol are registered for a statistics class. Alice attends 80% of the time, Betty 70% of the time, and Carol 60% of the time. Suppose their absences are independent. On a given day, (a) What is the probability that at least one of them is in class

£56

step-by-step explanation:

u divide 24 by 3 and u get 8 so if u do 8 time 7 or 8+8+8+8+8+8+8 u get 56 and 56 divided by 7 is 8.

b. hannah is playing with her cousin at

step-by-step explanation:

why? because i noticed a pattern. 60 120. those numbers without the zero, make the 6 times tables leaving your answer to be b since 6 times 4 is 24 and adding a zero making it 240.