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Mathematics 17 Online
OpenStudy (calculusxy):

For a class project, John counted vehicles that drove through an intersection near his house. On the first day, 7 out of 12 vehicles were truck. Part A: What was the experimental probability that was a vehicle driving through the intersection was a truck?

OpenStudy (calculusxy):

@SolomonZelman

OpenStudy (calculusxy):

@perl

OpenStudy (anonymous):

wouldent it be 7/12? i mean you cant simplify it anymore than that

OpenStudy (perl):

right

OpenStudy (calculusxy):

Okay. Thanks that what I got.

OpenStudy (calculusxy):

Another question, please?

OpenStudy (anonymous):

ok cool

OpenStudy (calculusxy):

Lauren spins the spinner 50 times. Which is the best estimate of the number of times she will land on the number 4?

OpenStudy (calculusxy):

I thought of dividing 50 by 4. The quotient was 12.5 so I rounded it it off to 13.

OpenStudy (calculusxy):

Am I correct?

OpenStudy (calculusxy):

|dw:1424914737458:dw| Sorry if it doesn't look too equivalent with the others.

OpenStudy (calculusxy):

@SolomonZelman

OpenStudy (calculusxy):

@perl

OpenStudy (calculusxy):

@SolomonZelman I need help on the second question.

OpenStudy (solomonzelman):

spins a spinner? what does the spinner have on it?

OpenStudy (solomonzelman):

1-4 ? how do you know ?

OpenStudy (calculusxy):

I have the sheet.

OpenStudy (solomonzelman):

so it is given that spinner has numbers 1-4 ?

OpenStudy (calculusxy):

Yes

OpenStudy (solomonzelman):

but, if you are starting from 1 don't round up

OpenStudy (calculusxy):

But it's asking for you to find how many times it will land on 4.

OpenStudy (solomonzelman):

For example, if I have 44 apples, and I want to distribute them to 9 friends. I will be able to give 4 whole apples to each. Don't round up to 5.

OpenStudy (calculusxy):

Is it possible to have 12.5 times on 4?

OpenStudy (solomonzelman):

it will go on 4, 12 times (12 cycles/circles), and then will hit 1, hit 2 and stop

OpenStudy (calculusxy):

One of my friend took the test. And she said that there was no option that had decimals in it.

OpenStudy (solomonzelman):

so it is only hitting 4 12 times, not 13. (Just like in my proposed case with apples.)

OpenStudy (solomonzelman):

I am saying to round it down, not to not round it at all

OpenStudy (perl):

i agree with your work 50 * 1/4 = 12.5 ~ 13 times

OpenStudy (solomonzelman):

but you don't actually have 13

OpenStudy (calculusxy):

Thank you

OpenStudy (solomonzelman):

you only have 12 hits on 4, then it hits a 1 then hits a 2. THEN STOPS !

OpenStudy (solomonzelman):

it is not hitting "4" 13 times, does it?

OpenStudy (solomonzelman):

re-consider my case with apples, maybe

OpenStudy (solomonzelman):

am I sense-less /

OpenStudy (calculusxy):

I posted a new question @perl

OpenStudy (perl):

where is it

OpenStudy (calculusxy):

I mentioned you.

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