Use the following information for questions:
Joan has noticed that the probability distribution for X = number of students in line to use the campus ATM machine when she shows up to use it is shown below.
-What is the probability that there will be no more than 1 student in line when Joan shows up?
A) 0.10
B) 0.20
C) 0.70
D) 0.90

Question

Use the following information for questions:
 Joan has noticed that the probability distribution for X = number of students in line to use the campus ATM machine when she shows up to use it is shown below. 
-What is the probability that there will be no more than 1 student in line when Joan shows up?
A) 0.10 
B) 0.20 
C) 0.70 
D) 0.90

Quizplus · Accepted Answer

The probability of there being no more than 1 student in line when Joan shows up can be calculated by considering the scenarios where there are 0 or 1 students already in line. Without specific details on the total number of students or the distribution of their arrivals, a common approach is to assume an equal probability for Joan being any place in the line. If Joan is the first (0 students ahead) or second (1 student ahead), these are the two favorable outcomes. If we assume a scenario where the total number of positions Joan could be in is not given, we cannot accurately calculate the probability. However, if this was a misunderstanding and there's a specific context or formula that was meant to be applied, it's crucial to provide that context for an accurate calculation. Given the options and without additional context, the answer seems to be based on an assumed or provided scenario not fully detailed in the question.

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