#probability-density

Question 1: Single choice

A model describes a sensor's measurement error with a Gaussian of mean 0 and standard deviation 0.1, whose density reaches a peak of about 3.99. Which statement about this model is correct?

It is valid: a density value is not a probability; probabilities are areas1
The model is invalid, because no probability can be larger than 12
The probability that the error is exactly 0 is about 3.993
The probability of an error between −0.1 and 0.1 is about 3.99 × 0.2, roughly 0.84

#probability-density

Timed test