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What our customers say about pdfFiller
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It has been a little difficult at times but I am computer illiterate so if I can do it or manage to figure it out I think it’s safe to say anyone’s name. I ha it has been a little difficult at times but I am computer illiterate so if I can do it or manage to figure it out I think it’s safe to say anyone’s name. I Got a few other features would be nice. Texutered, patterns of the paper texture already patterns of the paper also cut and paste; As well as Cut n pastes features.
2018-05-11
I tried pdffiller and was very…
I tried pdffiller and was very impressed with the platform. It was relatively simple to operate. I would recommend this site.
2020-03-24
Easy and free!
Have used it a couple of times to edit some PDFs. Really simple
I don't know if its just me but seems like the page gets pretty unresponsive at times
2018-11-05
pdfFiller is really helpful
pdfFiller is really helpful. I'm really pleased that the customer service also gives quick response for my subscription problem and can handle it quickly
2024-06-19
I was surprised I still have to hand…
I was surprised I still have to hand write a form to send to IRS - I thought this would take care of it for me. Or did I miss something.
2022-02-08
Excellent and very useful. And good customer service! I was confirmed a refund quickly after contacting them (although I still have to wait for the transfer)
2020-11-16
I have just used pdfFiller for the…
I have just used pdfFiller for the first time, but it was really quite simple and user-friendly. Thank you!
2020-10-13
What do you like best?
Ability to quickly and easily edit PDF's
What do you dislike?
Sometimes it's difficult to undo changes made.
What problems are you solving with the product? What benefits have you realized?
I work in real estate and I often need to fill in PDF's with information for my clients. Being able to do in a web based platform makes it easy to do on any computer.
2020-08-30
Best docs tool ever
Best customer service ever, very prompt response with 24hrs manned online support, this tool is the best and very convenient to use. Had an issue with my account so they did refund money i paid for the premium subscription in less than an hour.
2020-06-14
For pdfFiller’s FAQs
Below is a list of the most common customer questions. If you can’t find an answer to your question, please don’t hesitate to reach out to us.
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What is the integral of a PDF?
The CDF is the integral of the PDF and in this case is. F(n)=n00.25xdx=0.25×22|n0=0.25n20.25(02)2=0.125n2, where 0n8. Thus, if we wanted to determine the probability of being less than or equal to 2 we can use the CDF function. F(x)=0.125×2F(2)=0.125(22)=0.5.
What is the difference between a PDF and a CDF?
Basically CDF gives P(X x), where X is a continuous random variable, i.e. it is the area under the curve of the distribution function below the point x. PDF of a continuous random variable gives the value P(X=x) and area at a point (say x) is 0. Suppose, a continuous random variable X follows Normal Distribution.
How do I get a random variable from a PDF?
If X is a continuous random variable and Y=g(X) is a function of X, then Y itself is a random variable. Thus, we should be able to find the CDF and PDF of Y. It is usually more straightforward to start from the CDF and then to find the PDF by taking the derivative of the CDF.
How do you find the CDF from a PDF?
Find the CDF of Y. Find the PDF of Y. Find EY.
How do you sketch a PDF and CDF?
0:21 2:48 Suggested clip Sketching a Probability Density Function : Edexcel S2 June 2012 YouTubeStart of suggested client of suggested clip Sketching a Probability Density Function : Edexcel S2 June 2012
How do you integrate a function?
Declare a variable u and substitute it into the integral: Differentiate u = 4x + 1 and isolate the x term. This gives you the differential, Du = 4dx. Substitute Du/4 for DX in the integral: Evaluate the integral: Substitute back 4x + 1 for u:
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