Question

Starting at a fixed time, each car entering an intersection is observed to see whether it turns left (L), right (R), or goes straight ahead (A). The experiment terminates as soon as a car is observed to turn left. Let X = the number of cars observed. What are possible X values?
Given the outcomes below, find their associated X values.
Outcome: RRL AARRL AARL RRAL ARL
x= ____ ____ ____ ____ ____

Answer 1

Answer:

x=3, 5, 4, 4, 3

Step-by-step explanation:

Given:

Starting at a fixed time, each car entering an intersection is observed to see whether it turns left (L), right (R), or goes straight ahead (A) such that the experiment terminates as soon as a car is observed to turn left.

X = the number of cars observed

For outcome RRL,

experiment terminates after the third car, so, X = 3

For outcome AARRL,

experiment terminates after the fifth car, so, X = 5

For outcome AARL,

experiment terminates after the fourth car, so, X = 4

For outcome RRAL,

experiment terminates after the fourth car, so, X = 4

For outcome ARL,

experiment terminates after the third car, so, X = 3