4-54/118 Suppose the time it takes a data collection operator to fill out an electronic form for a database is uniformly between 1.5 and 2.2 minutes. I (a) What is the mean and variance of the time it takes an operator to fill out the form? (b) What is the probability that it will take less than two minutes to fill out the form? (c) Determine the cumulative distribution function of the time it takes to fill out the form.

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Latches and Flip Flop

Just like logic gates, the latches and flip-flops are the important elements of an electronic circuit. The logic gates form the important part of combinatorial circuits, while the latches and flip-flops form the essential part of a sequential circuit. Sequential circuits form the important concept of automata theory in electronics and electrical engineering, these circuits are a kind of logic circuit whose output depends on both present input and past inputs, that is, the input history.