Q5: The time between calls to a corporate office is exponentially distributed with a mean of 10 minutes. (a) What is the probability that there are more than three calls in one-half hour? (b) What is the probability that there are no calls within one-half hour? (c) Determine x such that the probability that there are no calls within x hours is 0.01. (d) What is the probability that there are no calls within a two-hour interval? (e) If four nonoverlapping one-half-hour intervals are selected, what is the probability that none of these intervals contains any call? () Explain the relationship between the results in part (a) and (b).

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Q: thank you so much I understand it now and it worked

A: Okay.

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Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.