Question

A dentist office gives a survey to all wisdom teeth extraction patients asking them to rate the quality of their dental experience. One month after wisdom teeth extraction, the dentist contacts the patients again to ask if there were any complications from the extraction. Last year, the results of the surveys showed that of the patients who had a poor dental experience, 37% had post-extraction complications. What conclusion can be drawn from this study?

Answer 1

Poor dental experiences cause post-extraction complications.

Post-extraction complications cause poor dental experiences.

Some patients who have a poor dental experience also have post-extraction complications.

Most patients who have a poor dental experience also have post-extraction complications.

Answer 2

is it c?
if so explain to me why it is and why the other options arent true

Answer 3

@dan815

Answer 4

@Preetha

Answer 5

@e.mccormick @phi

Answer 6

this question makes my doubt myself a lot >.<

Answer 7

Poor dental experiences cause post-extraction complications.

First we need to understand this (I would not use this sentence as an example of how to write clearly)

poor dental experience means (I guess) you were unhappy or uncomfortable at the dentist's office.

post-extraction complication means you have some kind of problem after you got home (infection?).

do you think a "poor experience" *caused* the complication?

Answer 8

isnt it the other way around?

Answer 9

the complication happens after you get home,
and causes occur before the event, so the complication can not be the cause of being unhappy at the dentist's office.

hit by car --> broken arm (hit by car is a cause)
broken arm does not cause hit by car.

Answer 10

ohhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh, it makes perfect sense now lol so its poor dental experiences cause post-extractions complications , correct?

Answer 11

poor dental experiences happens before you get home.
but that is not enough to be a cause.

for example
sun rose in the morning--> broken arm at noon
the sun rising did not cause the broken arm (the cause was getting hit by a car)

common sense should tell you "being unhappy" does not cause you to have a complication. (Though you might be unhappy because the dentist did not sterilize his drill, and that caused you to 1) be unhappy and 2) have complications)

the point is, the poor experience did not cause you to have a problem later (At least I can't think of any reasonable way it could)

Answer 12

unclear ?

Answer 13

i still dont undersand, im confused after reading this

Answer 14

@phi

Answer 15

Let's say you are at the dentist, and you have a miserable time.
then you go home.
2 weeks later you get an infection in your mouth.

Does it make sense that being miserable caused the infection? (Most people would say bacteria caused the infection)

Answer 16

yes it does , ok NOW i get it hahaha

Answer 17

@phi

Answer 18

ok, so statement one is not the answer.
statement 2 is not the answer (because the complication happened after the visit, so it can't be the cause)

statement 4
Most patients who have a poor dental experience also have post-extraction complications.

Most means more than half, i.e. more than 50% of patients
so statement 4 is saying

More than 50% of the patients who have a poor dental experience also have a complication.

but the info says "37% of the patients who have a poor dental experience also have a complication."

Answer 19

so statement 4 is not the answer (37% is not more than 50%)

Answer 20

so would it be statement 3?

Answer 21

the info says

of the patients who had a poor dental experience, 37% had post-extraction complications.

rewording that:
37% of the patients who had a poor dental experience had complications.

that matches up pretty well with statement 3
Some patients who have a poor dental experience also have post-extraction complications.

Answer 22

"some patients" matches well with "37% of patients"

Answer 23

so some=not all and not all=to 37% right?

because it is not referring to the majority but SOME of the patents who took the survey say they had complications. right?

Answer 24

if you look up "some" , the definition is

being one, a part, or an unspecified number of something (as a class or group) named or implied <some gems are hard>

But I always interpret "some" to mean at least one, but not most.

Answer 25

so, my final answer is option 3 right?

Answer 26

@phi

Answer 27

yes, #3

Answer 28

pk thanks a lot for clearing this up :)