Statistics and Probability

Question 1

Mean

Answer 1

average value of parameters

Question 2

Median

Answer 2

midpoint of the variables

Question 3

Variance and standard deviation

Answer 3

concerned with quantifying how mucgh the parameters vary from the mean value

Question 4

Calculate the mean and median of the following numbers:
4100, 4700, 4200, 20000, 4000

Answer 4

Mean = 7400
Median = 4200

Question 5

Cumulative Distribution Function (CDF)

Answer 5

Captures how a parameter varies over a range of values. Calculates the probability of getting a value less than or equal to a defined value. Obtain this with a histogram

Question 6

Histogram

Answer 6

A data model that outputs data in the form of bars of differeing heights. The more vertical the bar the higher the value.

Question 7

What are the two kinds of random variables?

Answer 7

1) Discrete variables - integer numbers
2) Continuous variables - any number

Question 8

Binomial Distribution

Answer 8

Problem like flipping a coin (heads or tails).
P(x) = (n x)p^xq^(n-x)

Question 9

What are the different probability distribution types?

4

Answer 9

1) Normal
2) Gaussian
3) Exponential
4) Uniform