Listed below are the durations (in hours) of a simple random sample of all fligh

Question

Listed below are the durations (in hours) of a simple random sample of all flights of a space shuttle. Find the (a) mean, (b) median, (c) mode, and (d) midrange fo- given sample data. Is there a duration time that is very unusual? How might that duration time be explained? 78 96 240 187 169 261 188 373 256 240 382 332 216 249 0 a, The mean is hours. (Round to one decimal place as needed.) b. The median is hours (Round to one decimal place as needed.) c. Select the correct choice below and fill in any answer boxes in your choice. O A. The mode is hours. (Use a comma to separate answers as needed. Round to one decimal place as needed.) OB. There is no mode. d. The midrange is is hours. hours

Explanation / Answer

we have the values as 78 96 240 187 169 261 188 373 256 240 382 332 216 249 0. so there are 15 values

arranging in increasing order

0 78 96 169 187 188 216 240 240 249 256 261 332 373 382

a) hence mean=(0+78+96+169+187+188+216+240+240+249+256+261+332+373+382)/15=217.8 hours

b) median=(15+1)/2 th value=8th value=240 hours

c) mode=240 since it has the highest frequency of 2

d)midrange=(0+382)/2=191

yes the time of 0 hours is very unusual. it could represent a flight that was aborted.

Related Questions

Navigate

• Browse (All)
• Browse L
• Subjects

---

---

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