- Видео 34
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Rachel Webb
США
Добавлен 10 янв 2013
Видео
Calculate the mean, variance, and standard deviation of a continuous probability distribution.
Просмотров 1867 месяцев назад
Use calculus to find the mean, variance, and standard deviation of a continuous probability distribution. Starts with an example of finding a probability, then calculates an average (mean), variance, and standard deviation for f(x) = 1.25(1-x^2) between 0 and 1.
Continuous Probability Distributions (pdf and cdf)
Просмотров 417 месяцев назад
Define a probability density function (pdf) and cumulative distribution function. Show example of finding a constant for a valid continuous probability distribution using integral calculus. Calculus based probability and statistics course.
How to Link MyOpenMath in D2L
Просмотров 1 тыс.4 года назад
This video walks instructors though the process on linking MyOpenMath content into the D2L course and gradebook.
Mean Variance and Standard Deviation for a Discrete Probability Table using Excel
Просмотров 47 тыс.6 лет назад
Use Excel to find the mean, variance and standard deviation for a discrete probability distribution table.
ANOVA using Excel
Просмотров 2547 лет назад
One-way ANOVA examples MyStatLab problem using Excel's Data Analysis Tool
Hypothesis Test for Variance or Standard Deviation
Просмотров 2,9 тыс.9 лет назад
Hypothesis Test for Variance or Standard Deviation
Conditional Probability with Independent and Mutually Exclusive Events
Просмотров 3,9 тыс.9 лет назад
Conditional Probability with Independent and Mutually Exclusive Events
Conditional Probability-Independent vs Mutually Exclusive Events
Просмотров 1,2 тыс.9 лет назад
Conditional Probability-Independent vs Mutually Exclusive Events
Chi-Square Test for One Standard Deviation
Просмотров 3,3 тыс.9 лет назад
Chi-Square Test for One Standard Deviation
how to calculate 99.75, 99.75, 99.50
I'm not sure what you are asking?
This was so helpful, I just subscribed because of this video.
Omg u just helped me so much !! Thank u lol
i agree. I wish its easy to understand like this. Thanks
thank you so much
Thanks great vid!
May I ask how you got the value for T?
Hear me out ! Your explanation is way too amazing!! Thanks a bunch!
Thanks so much, I no longer want to pull my hair out! cheers
I wish all excel videos were like this. Thank you so much!
Very useful.
A lifesaver, thank you!!
So easy !!! Thank you !
Great video thank you so much!!
great explanation! quick and easy
thank you!
you're the best! thank you for this video!
So helpful, thanks!
thanks so much for this sooo easy
Do you have any more videos on statistics?????
awesome, awesome, awesome, thank you
How do you find P(A|B) with the given of P(A) and P(B), and they're mutually exclusive?
If two events are mutually exclusive then the P(A and B) = 0, therefore by the definition of the conditional probability P(A | B) = P(A and B) / P(B) you would get P(A | B) = 0/.32 = 0. The main thing to remember is that mutually exclusive (also called disjoint) is not the same thing as independent events. Mutually exclusive events cannot occur at the same time. Independent events mean that one event does not affect the probability of the other event occurring.
Elementary Statistics: Section 10-1 (page 549); Problem 15
what do I do if I don't have a stats/list editor in my TI-89?
Do you have the cable that goes from your calculator to the computer? If so then you can install TI-Connect software on your computer and then download the Stat/List editor to your calculator. You can also transfer it from calculator to calculator with the right type of cord using the Var-Link button. I have a link to the calculator directions on my web site: sites.google.com/pdx.edu/rachelwebb/home.
Very clear, thank you!
you forget to put a square root
In the calculator portion or the written portion? I am not seeing where it was left off.
Je vous remercie pour votre explication très détaillée
I know this is an old video, but you have no idea how much this helped me! I was looking for exactly this, and all these videos with thousands of views and likes weren’t helpful. Thank you for helping me to understand it so clearly!
Can you include that sheet you used?
omg headache are there any other easier way? :(
The TI-89 calculator will find prediction intervals for you. Or a statistical software package like MINITAB. I have a TI-89 emulator on my computer, but it is a bit tricky to load the STAT/LIST app onto the emulator. You can download a free 30 day trial version of MINITAB at minitab.com. No shortcuts in Excel or the TI-83 or 84 calculators.
You can use statistical software like R or SPSS. Also the TI-89 calculator will find a prediction interval for you. You can run a free TI-89 simulator on your computer and then do the 1-SampT-Int. The TI-84 has this shortcut too, but only does the confidence interval for a slope and not for y. Setting up a TI-89 simulator was not very intuitive.
Thank you Sooo much!I spent 4 hours looking for a video on P.I on SLR and none of them show how to get the standard deviation and the other parameters as clear as your video!Thx
Your video was really good. Now in school I am studying percentile graphs.
Super helpful, thanks! 😊
Hello, I was curious on how you got the the INVF function on your calculator? Thanks for the helpful video.
You can download the programs from my website at web.pdx.edu/~webbr/ using the TI-Connect software, provided you have the cable that came with your calculator. If you are in the Portland, OR area feel free to stop by office hours and I can quickly install the programs for you. One of my colleagues, Jess Millar, wrote the programs, she is a calculator wizard.
Thank you so much. I also had the same question. Currently, trying to figure out how to install it into my TI-84 while looking for the cable -.-''
Very detailed video, more instructors should make simple explanations like you! Thanks!
THANK YOU!