This Question: 1 pt 9 of 25 (14 complete) This Test: 25 pts possible Use the dat

Question

This Question: 1 pt 9 of 25 (14 complete) This Test: 25 pts possible Use the data in the following table, which Iists drive-thru order accuracy at popular fast food chains. Assume that orders are randomly selected from those included in the table Drive-thru Restaurant Order Accurate 336 236 121 Order Not Accurate 3755 39 13 If one order is selected, find the probability of getting an order that is not accurate or is from Restaurant C. Are the events of selecting an order that is not accurate and selecting an order from Restaurant C disjoint events? The probability of getting an order from Restaurant C or an order that is not accurate is (Round to three decimal places as needed.) Are the events of selecting an order from Rest rant C and selecting an inaccurate order disjoint events? eventsdisjoint becausipossible to Enter your answer in the answer box

Explanation / Answer

Total orders are
336+272+236+121+37+55+39+13 = 1109

probability of getting and order from C is

(236+39)/1109 = 0.2479

probability of not accurate order

(37+55+39+13)/1109 = 0.1298

as it is an "or" we add the probabilities as

0.1298+0.2479 = 0.3777

we know that
Disjoint events cannot happen at the same time.

however in this case it is possible that the order is not accurate and comes from restaurant C (39 sunch cases), hence they are not disjoint events

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.