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Mathematics 15 Online
OpenStudy (anonymous):

c

OpenStudy (anonymous):

The following table shows the data collected from 2 random samples of 100 students each from an after-school club regarding their favorite outdoor activity: Sample Canoeing Bike Racing Reading Total 1 40 35 25 100 2 45 40 15 100 Which of the following observations can be made about the number of students in the club who prefer canoeing? It is more than the number of students who prefer bike racing and reading combined. It is less than the number of students who prefer bike racing and reading combined. It is equal to the number of students who prefer reading. It is less than the number of students who prefer bike racing.

OpenStudy (anonymous):

which is true?

OpenStudy (anonymous):

what? sorry i dont understand the question.

OpenStudy (anonymous):

so what are they asking about?

OpenStudy (anonymous):

they want to know why people prefer canoeing

OpenStudy (anonymous):

mathmatical wise

OpenStudy (anonymous):

um, you should re-read the question

OpenStudy (anonymous):

?

OpenStudy (anonymous):

there is nothing about "why" people prefer canoeing.

OpenStudy (anonymous):

oh

OpenStudy (anonymous):

what observations can be made with the number of people who prefer canoeing?

OpenStudy (anonymous):

?

OpenStudy (anonymous):

so how many prefer canoeing?

OpenStudy (anonymous):

40

OpenStudy (anonymous):

um, is that the total for both samples?

OpenStudy (anonymous):

oh no sorry! i was just reading the first sample, my bad.

OpenStudy (anonymous):

85?

OpenStudy (anonymous):

again with the ? ?

OpenStudy (anonymous):

sorry! ill try to be more confident haha

OpenStudy (anonymous):

okay, so look at the first comparison... what do they want you to compare?

OpenStudy (anonymous):

what do you mean?

OpenStudy (anonymous):

read it please

OpenStudy (anonymous):

hint: the "It" at the beginning refers to the number of students in the club who prefer canoeing.

OpenStudy (anonymous):

ok so in sample one only 40 people prefered canoeing, but in sample 2 45 prefered canoeing

OpenStudy (anonymous):

that is not what they are asking you to compare

OpenStudy (anonymous):

oh theyre comparing the amount of people who prefer canoeing to the other activities?

OpenStudy (anonymous):

"It" is more than the number of students who prefer bike racing and reading combined. hint: the "It" at the beginning refers to the number of students in the club who prefer canoeing.

OpenStudy (anonymous):

like bike racing and reading?

OpenStudy (anonymous):

there you go... in this comparison it's bike racing and reading combined... meaning to do what with those numbers?

OpenStudy (anonymous):

subtract..?

OpenStudy (anonymous):

so you're making a cake and the direstions ask you to combine ingredients. does that mean remove (or "subtract") the eggs and oil from the dry ingredients?

OpenStudy (anonymous):

no doesnt it mean to add the ingrediants? since they want you "combine" the ingrediants?

OpenStudy (anonymous):

exactly, but where's the confidence? now, apply to this situation. do they want you to subtract the number of students who prefer bike racing from those that prefer reading? if not, what do they want you to do with them?

OpenStudy (anonymous):

they want you to add them! (confidence)

OpenStudy (anonymous):

very good, so how many is that?

OpenStudy (anonymous):

200 i think

OpenStudy (anonymous):

there are a total of 200 combined in the 2 samples. do all of them prefer bike racing or reading?

OpenStudy (anonymous):

wait hold on im confused

OpenStudy (anonymous):

i thought they wanted us to add ALL of the numbers

OpenStudy (anonymous):

how many from the first sample prefer bike racing?

OpenStudy (anonymous):

how many from the second sample prefer bike racing?

OpenStudy (anonymous):

75

OpenStudy (anonymous):

how many from the first sample prefer reading?

OpenStudy (anonymous):

40

OpenStudy (anonymous):

how many from the second sample prefer reading?

OpenStudy (anonymous):

15

OpenStudy (anonymous):

oh ok ok i get it now lol i was confused for a minute but im understanding it again.

OpenStudy (anonymous):

how many from the first sample prefer bike racing? -> 35 how many from the second sample prefer bike racing? -> 40 how many from the first sample prefer reading? -> 25 how many from the second sample prefer reading? -> 15 what is the " number of students who prefer bike racing and reading combined"?

OpenStudy (anonymous):

115

OpenStudy (anonymous):

excellent! now campare that to the number of students who prefer canoeing.

OpenStudy (anonymous):

compare not campare

OpenStudy (anonymous):

oh ok! so more people prefer bike riding and reading than canoeing

OpenStudy (anonymous):

so, which of the statements is correct?

OpenStudy (anonymous):

b- it is less than then number of students who prefer bike racing anbd reading combined

OpenStudy (anonymous):

awesome!!! good job, i have to go now. best of luck and keep up the good work. you can do this, take your time, read and understand, gather the appropriate info and answer the question being asked... with confidence! you will get quicker at this just keep at it!!!

OpenStudy (anonymous):

thank you so so much for your help! i feel so much more confident now!

OpenStudy (anonymous):

: )

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