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Category > Engineering Posted 06 Jun 2017 My Price 7.00

Write a sentence or two describing the spread in running times based on

Movie lengths II. Exercise 25 looked at the running times of movies released in 2005. The standard deviation of these running times is 19.6 minutes, and the quartiles are minutes and minutes.

 

a) Write a sentence or two describing the spread in running times based on

i) the quartiles.

ii) the standard deviation.

b) Do you have any concerns about using either of these descriptions of spread? Explain.

Exercise 25

Movie lengths. The histogram shows the running times in minutes of 122 feature films released in 2005.

a) You plan to see a movie this weekend. Based on these movies, how long do you expect a typical movie to run?

b) Would you be surprised to find that your movie ran for hours (150 minutes)?

c) Which would you expect to be higher: the mean or the median run time for all movies? Why?

 

Answers

Alpha Geek
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Status NEW Posted 06 Jun 2017 02:06 PM My Price 7.00

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file 1496760624-Answer.docx preview (223 words )
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