most roller coasters get their speed by dropping Most roltler coasters get their
ID: 3375632 • Letter: M
Question
most roller coasters get their speed by dropping Most roltler coasters get their speed by dropping down a sseep intial nckee, so & makes sense ths the height of that drop might be lte to the speed of the coaster Here's ascarplot of top speed and langest drop for 75 coasters wround the world Complete puts al and t ) Does the scatterplot indicthat is approprate to calculate e comelation? Exp outsers bj h fact, the comelation of speed and drop is 0 90 Descnbe the aociation Chosse the conect anwe below OB. Theie is strong,negtiveinesotien between drop and speed the smaler the coanter inta dop, the higher the top speed A There is a weneative,near aocation between drop and speet, the smaler the coaster's inbal np C Thens is a strong,postive,linea cion beten drop and speed, the geter the ceter's inldop, the higher the top spee drip the bigher the top speeExplanation / Answer
Solution: a) Does the scatterplot indicate that it is appropriate to calculate correlation? Explain.
Answer: Yes it shows a linear form with no outliers.
b) In fact, the correlation of speed and drop is 0.90. Describe the association.
Answer: C. There is strong positive linear association between drop and speed; the greater the coaster's initial drop, the higher the top speed.
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