A physician observes the number of lesions on subjects who regularly used tanning salons. Let X be the number of lesions observed. The physician found that X had the following probability distribution.
?
?
$$\begin{array} { | l | l | l | l | l | l | }
\hline \text { Value of } \boldsymbol { X } & 0 & 1 & 2 & 3 & 4 \
\hline \text { Probability } & 0.05 & 0.1 & 0.25 & 0.30 & 0.30 \
\hline
\end{array}$$ What is the value of P(X 3)?

Question

A physician observes the number of lesions on subjects who regularly used tanning salons. Let X be the number of lesions observed. The physician found that X had the following probability distribution.
?
?
$$\begin{array} { | l | l | l | l | l | l | } 
\hline \text { Value of } \boldsymbol { X } & 0 & 1 & 2 & 3 & 4 \
\hline \text { Probability } & 0.05 & 0.1 & 0.25 & 0.30 & 0.30 \
\hline
\end{array}$$ What is the value of P(X > 3)?

Quizplus · Accepted Answer

P(X > 3) refers to the probability of observing more than 3 lesions, which, according to the given distribution, is only possible for X = 4. The probability for X = 4 is 0.30.

A Physician Observes the Number of Lesions on Subjects Who