# Questions tagged [probability-distribution-function]

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### pdf and their relation to moments [migrated]

I read that gaussian distribution is only defined by 2 moments i.e., mean and variance and can be only defined by these moments. Do we have distributions defined by just mean? Even for that matter, ...
63 views

### Sifting Property of Shifted Impulse

In the SE Chemistry forum, someone posted an interesting question on converting a scaled and shifted delta function into Lorentzian by convolution please see "simulating a molecular spectrum"...
143 views

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### Oversample or undersample correlated noise?

I wish to measure nontrivial (non-Gaussian) broadband current noise for its distribution and power spectral density. The noise is amplified (with transimpedance amplifier) with some characteristic ...
85 views

### How to get info (mean,std) out of normplot in matlab?

Lets say we have the following data and then we have a normplot: load census; h=normplot(cdate); [mean std]=normfit(cdate); I know i can get the mean(1890) and ...
47 views

### Fit Rice Distribution for negative RSS

I measured the Received Signal Strength in dBm between a receiver $R_x$ and a transmitter $T_x$ at different distances $d_1, d_2, \dots, d_n$, and all the values that I obtained are (of course) ...
50 views

### Bandwidth and probability of continuous signal

I'm a little bit confused as to how to calculate the bandwidth of a signal. A question has me believing that it is correlated with the probability distribution. I am however not sure of this. ...
40 views

### Plotting a density function

I am trying to plot the following function in MATLAB $$f(x) = \lambda e^{-\lambda(x-\Delta)}w(x-\Delta)$$ where w(x) = \begin{cases} 1 &x \geq 0 \\ 0 & {\...