A technician services mailing machines at companies in the Phoenix area. Depending on the type of malfunction, the service call can take 1, 2, 3, or 4 hours. The different types of malfunctions occur at the same frequency (i. e., any service call will need either 1 hour or 2 hours or 3 hours or 4 hours with equal chance). Do not round your answers.1. Develop a probability distribution for the duration of a service call. Let X be the random variable for the duration of a service call and f(X) be the probability distribution

if a = 1,   and b = 2, then the answer is 47.99999999. if you round that to the nearest whole number, the answer is 48.

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.

3 qrs + 3/2 xy hope this : /

step-by-step explanation: