I need some homework help STAT (Probability and Statistics)

[Trump_1776]

Alright fellas, got two questions I can't figure out on this homework.





Can anyone give me a hand?
Thanks

 

[Goose12]

Alright fellas, got two questions I can't figure out on this homework.


View attachment 975


Can anyone give me a hand?
Thanks

I think the first one is D, because if there is an average of five accidents a year there is a good probability there will be fewer than five.

The second one is A.

I am not going to say I am 100% right

 

[MNK99]

WAIT WTF? AREN't they asking the Probability for each choice? That's how all my math, stats, econ, finance, accounting tests were. Except intro courses.
(The tests themselves were nearly always written exceptionally poorly too, I might add).
-Business Law, entreprenuership, Comms, even retarded English classes were like this and 4th year Psyche depending on prof (jumped majors a bit).

Aren't there 8 Questions here? @Trump_1776
I guess this could literally be a multiple choice assignment. ---> **THERE'S NO "QUESTION MARK AT THE END OF THE PRIMARY STATEMENT (intro to question) though.**

-IF THIS IS POSED (the way @Goose12 stipulates it); then Yeah he's right, I think. #5. D., #6. is... not sure about this one.

-Honestly, where I'm from they write tests purposely to fuck you... and usually in intro classes/ you can compute it (science was hard tho).

-Everything else 3rd to 6th yr is usually written out... even intro classes can and often are outside of the 12 common science/math courses (like bio, physics, chem, general sci majors)...

 

[Trump_1776]

Its asking the probability of each. I got #5 but can't get #6

 

[MNK99]

-SIGN UP HERE for other courses if need be, cancel card tho. I did for econometrics and mathematical analysis of financial markets and some other classes.
- Change credit card... use for a semester or 1.5-2 yrs... then discard or TUTOR on there and use the credits as money. Seriously, great idea. @Trump_1776 .

Sign Up - Course Hero
For another subject, a 29 year old male in the study by Diskin et al. (A-11), acetone levels were normally distributed with a mean of 870 and a...

-or:
-Seems a common text/ order and get soln's manual... buy off amazon/ use calibre convert to azw3/azw4/pdf and reverse engineer it. = perfect score.
-Then return the book after converting it. *but do not tell anyone*. It's not cheating / but others may think otherwise.
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47 minutes ago

-that's the frikken words, binomial of c.
-and Gaussian. -nice work @manu. )) --Literally a stronger memory I'd solve this; pull up the curves. It is literally z score and plug ins.

 

[manu]

5) is binomial distribution. But I think there is some info missing. Can't tell how distribution should look like..

6) is Gaussian distribution. I think you will have to integrate over gaussian bell curve with appropriate limits for each question.

EDIT: oh no there is nothing missing. n=365, p=6/365
But apparently you already figured it out...

 

[RebelWithACause]

Just saw this lol

Yea:

A = +2

B = +5

C = -5

d = 0

D is closest (probability)

6.

A = -270 and + 130

B = +30

C = -370

D = +30 and +230

I am not English but deviation means it could range -211 and +211 right. I think A.

 

[raven]

Just saw this lol

Yea:

A = +2

B = +5

C = -5

d = 0

D is closest (probability)

6.

A = -270 and + 130

B = +30

C = -370

D = +30 and +230

I am not English but deviation means it could range -211 and +211 right. I think A.

They're asking for probabilities so a number between 0 and 1 for each, but im pretty sure his deadline has long gone anyway lol

 

[Jaxx]

It was fake news anyway....

And LOL at some of these answers

 

[MNK99]

--yeah reminds me of teaching myself like every science and econ course i took last minute, brutal.
-- so any future school -- choose rite program and use what I need to... and LIVE FUCKING CLOSE. not 3hrs away.
-get amazing notes too, and take great notes but compare with a friend. --also never ever transfer to a terrible school again.

 

[Walker]

Giving me nightmares from my engineering undergrad....

 

[Slayo]

I did statistic exam 5 months ago, so I could have easily solved those questions, BUT it is fucking normal to not remember ANYTHING ???? My pfs memory is extremly bad, but I would know from other people if it is normal to not remember anything from an exam done 5 months ago (and passed with good score)

 

[Walker]

I did statistic exam 5 months ago, so I could have easily solved those questions, BUT it is fucking normal to not remember ANYTHING ???? My pfs memory is extremly bad, but I would know from other people if it is normal to not remember anything from an exam done 5 months ago (and passed with good score)

Honestly, if you're not actively using it week to week, it's totally normal in my opinion to not remember detailed, mathematical solutions and techniques when you haven't touched them in five months.

 

[MNK99]

I surely hope so... relearned stats in 2 different majors... and also calc.... every year that I studied. And accounting.... and finance... etc.
Practice makes perfect. If you do 20 practice tests and every question in the book 2-3x (never quite did that, but lots did), then that year you'll know it all. I probably did when younger and less messed up. I will for certain future exams. @Slayo I was in 3 different degrees. A- B+ last courses, way worse first years. I'm super random tho. (ya ya, "mnk get your shyt together"). This happened Past tense*.

Not like all PhD's or surgeons or wall st guys remember their courses. SURE, some do... but it's rare. My cousin does remember a ton of math, taught me in I.B. over the phone. But he's really skilled at it.

ALso there's no way in hell my 70 year old profs remember math behind a lot of things, maybe proofs during their PhD's. The math ones sure. PHD is different -- those guys often know their shyt. I just did school cuz it was a thing to do, and expected and also for work... or whatever. And future too... The foreign profs doing calc at 14 in asia, russia, etc... probably do remember quite a lot tho*. Me... I don't remember yesterday. Yay... im back.

Retaught myself 1st and 2nd calc for third, and intro micro for 4th and 5th year. etc... it was difficult at times for sure*.

Some profs "didn't remember me writing the exam" when in fact I did.... Many never remembered to be on time... so if PhD's can't remember shyt, of c students can't.

 

[raven]

Used to be an expert in fucking about all year and cramming at the end to pass the exams, realised that I hadn't learned anything because everything left my head immediately, practicing week in week out is the only way to stay knowledgeable about something imo

 

[RedStaR]

Wow, PFS must be a real bitch.

They think this is a multiple choice question ITT. Either that or no one here went to school.

The first question there is missing information, we need the number of workers. Unless it's Poisson, then:
a) 10.4%
b) 3.2%
c) 0.01%
d) 62%

The second question is a normal distribution with a mean and a standard deviation, so use a Z-table.

 

[RebelWithACause]

LOL damn I am stupid, luckily I have a big dick otherwise it would of been over for me in this life.

 

[Trump_1776]

You guys are weeks late. I mean thanks but fuck...

 

[Jaxx]

well you couldve calculated this would happen

 

[Trump_1776]

well you couldve calculated this would happen

We're gonna end birthright citizenship