Question: Let x denote the time (in seconds) necessary for an individual to react to a certain stimulus. The probability distribution of x is specified by

Let x denote the time (in seconds) necessary for an individual to react to a certain stimulus. The probability of x is specified by the following density curve:

a. What is the height of the density curve above x = 0?
b. What is the probability that reaction time exceeds 0.5 second?
c. What is the probability that reaction time is at most 0.25 second?

Density

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