Question

Jacob has a habit of oversleeping in the morning and when he oversleeps, he misses his breakfast. The probability of him oversleeping is $0.4$. What is the probability that he eats breakfast?

• A. $0.4$
• B. $1$
• C. $0.6$
• D. $0.1$

Answer 1

The correct option is C $0.6$

Given that the probability of Jacob oversleeping is $0.4$.
$P\left(oversleeping\right)=0.4$

Jacob would eat his breakfast when he would not oversleep.
We are looking for the probability of Jacob not oversleeping, i.e., $P\left(\overline{oversleeping}\right)$.

$P\left(\overline{oversleeping}\right)=1-P\left(oversleeping\right)$

$P\left(\overline{oversleeping}\right)=1-0.4$

$P\left(\overline{oversleeping}\right)=0.6$