s010 
Probability distributions of random variables

s020 
Probability of continuous random variables

s030 
Density function, distribution function and density curve

s040 
Density function, distribution function and density curve

s050 
Normal distribution

s060 
Normal distribution

s070 
Normal distribution

s080 
Normal distribution

s090 
The 689599.7\% rule

s100 
The 689599.7\% rule

s110 
Standardized normal distribution

s120 
Probability of normally distributed random variables

s130 
Probability of normally distributed random variables

s140 
Probability of normally distributed random variables

s150 
Using the table for the standardized normal distribution

s160 
Using the table for the standardized normal distribution

s170 
The relationship of $X$ and$Z$

s180 
The syntax $z_{a}$

s190 
Normal probability plot

s191 
Normal probability plot

s192 
Normal probability plot

s200 
tdistribution

s210 
ttable

s220 
tdistribution

s230 
$\chi^2$distribution

s240 
$\chi^2$table

s250 
$\chi^2$distribution

s260 
Fdistribution

s270 
Ftable

s280 
Fdistribution
