Table 8.

Values of expectation and variance in the normal distribution curve.

Temperature Difference ( ${}^{°}$C)	Expectation ($\mathit{\mu }$)	Variance (${\mathit{\delta }}^2$)
Walking (Tw-Ts)	−1.15 ${}^{°}$C	0.82 ${}^{°}$C
Upstairs (Tu-Ts)	−1.17 ${}^{°}$C	0.78 ${}^{°}$C
Downstairs (Td-Ts)	−0.95 ${}^{°}$C	0.88 ${}^{°}$C