Anyone here a genius at math?

[Grumpy Cat]

I'm starting college statistics on Monday and the tutor I had for college algebra said he didn't tutor statistics. I'm needing as much help as possible in case one avenue doesn't work, then I have another option to go to. I also am aware of a math site called "JMT Patrick" which is very useful and I have a DVD to help explain things. Now I just need some people who know statistics so I can bounce some questions off them. I would be very grateful for anyone who could help me in this area (I usually ask ALOT of questions though). AND if anyone is aware of any other free math sites that have "tutors" that explain math, I'd appreciate knowing about those as well. Thank you in advance!

 

[IContainMultitudes]

This is a site I would recommend to anyone taking a math or science course:

http://www.wolframalpha.com

 

[apt-get]

I'd say that I have a good aptitude for math and statistics, but I doubt I would say that I am a genius. A lot of my statistical skills are coupled to knowing how to operate numerical computing software like numpy+scipy or ROOT. I might be able to answer some questions, but my semester is starting in a week, and I will be very busy.

 

[Rob]

I'll be happy to help you with math. Math was one of my strongest subjects in high school. I am familiar with statistics too.

Thanks

 

[S0093679]

Im far from genius, but I won a scolarship for maths and now I study psychology at undergrad level (it includes inferential statistics). Stats is ok, but the wordy bit confuses me. The theory is fine.

 

[Grumpy Cat]

Could someone please tell me why C is the answer? (I want to cry!)

 

[Flinty]

Could someone please tell me why C is the answer? (I want to cry!)

Because the answer to b is greater than the answer to a. That makes both answer A and answer B incorrect.

(Yes, it's really that simple.)

 

[Grumpy Cat]

Because the answer to b is greater than the answer to a. That makes both answer A and answer B incorrect.

(Yes, it's really that simple.)

I'm trying to figure out what her theory is. I get the first part, but how is it "consistent with her theory?"

 

[Randomperson]

Her theory statement was "Change! if you believe your second answer is better, results in correct answers", as far as I can see from the portion of the word problem in the picture, part appears to be cut off on the far right hand side. the 3 answers are consistent with her theory.

 

[Rob]

Could someone please tell me why C is the answer? (I want to cry!)
View attachment 12485

Hi nurseangela -

This was a tricky question to get through - I had to figure out how they got their percentage answers. But the answer is C because if you look at part B, the percentage 129/(129+14489) or 0.882% was slightly higher than the percentage of 0.712% in part A. Even though the amount is only barely higher, the "Change" column did have the slightly higher percentage.

I hope this helps - Rob

 

[Grumpy Cat]

How I think about Statistics --

 

[Ste11aeres]

I'm trying to figure out what her theory is. I get the first part, but how is it "consistent with her theory?"

Her theory was that "telling the students to change will result in more of them changing. The question was badly worded in that it didn't explicitly tell you that she had an actual theory.

 

[Rob]

Her theory was that "telling the students to change will result in more of them changing. The question was badly worded in that it didn't explicitly tell you that she had an actual theory.

Yes the question is badly worded. The wording in the part c introduction should be "the idea that telling the students to change will result in more of them changing their answers" instead of the confusing phrase "the idea that students take their instructor's advice when it comes to strategies for changing answers in multiple choice tests." Even I feel mixed up reading this wording.

 

[Randomperson]

"Do the data support.." Do the data? It is does! not do! for **** sake! I realize spell check would not catch that sort of 5th language non native speaker grammar, but seriously did no one proof read it?!

 

[Grumpy Cat]

 

[icesyckel]

Her theory statement was "Change! if you believe your second answer is better, results in correct answers", as far as I can see from the portion of the word problem in the picture, part appears to be cut off on the far right hand side. the 3 answers are consistent with her theory.

Yeah, I read this and wondered if the part was "cut off" applied to her "theory statement." The best i can tell, however, from what is visible, your summation is exactly correct.

 

[Judge]

I think I'll stick to breaking down balance sheets, and assess key business ratios and analyzing stock trends. Determining solvency seems easy in comparison. Probably involves much less alcohol in the process.

 

[Grumpy Cat]

What in the hell is wrong with me?! I can't understand why I got this question wrong! I feel like crying.
Can someone tell me what I'm doing wrong? I thought the answer to B is 3.

 

[icesyckel]

The homes that have the most TV's have 9 TV's. the frequency part of the histogram does not come into play here. Out of the available data, some homes had 9 TV's. There were no reported homes with 10 TV's.

Put differently, you only look to the "X-Axis." The "Y" or vertical Axis is just a measure of how many homes had that number of TV's, and we don't care for this question how many homes had 9 TV's, only that some did.

Also, there is nothing "wrong" with you. No one is good at everything. I can't catch a ball to save my life. I'm not a math whiz either. You're a nurse, not a statistician. That you even have to take this class seems arbitrary and silly to me.

 

[Grumpy Cat]

I need to be Aspie. I'm reading more into it than I should be. I need to be more literal. Not only would a 5th grader have gotten that question right, but a kindergartener probably would have too! (I'm getting grumpy)