The mean and standard deviations for the measurements of acceleration for $(4$ decimals$)$:

$a_{up}($Mean$)$ is $\frac{m}{s^2}$ and $a_{up}($Standard deviation$)$ is $\frac{m}{s^2}$

Mean

Sample Data for a Cart Accelerating Down an Incline

$h_{\text{I}}=13\mathrm{.}6+-0\mathrm{.}2cm,h_2=5\mathrm{.}5+-0\mathrm{.}2cm,s=160\mathrm{.}8+-0\mathrm{.}3cm$

$\backslash$table$[[a_{up}(\frac{m}{s^2}),a_{\text{d}\text{o}\text{w}\text{n}}(\frac{m}{s^2}),$Notes$],[0\mathrm{.}498,0\mathrm{.}485,],[0\mathrm{.}498,0\mathrm{.}490,],[0\mathrm{.}487,0\mathrm{.}469,$Discard $-$ bumped the ramp during the run.$],[0\mathrm{.}491,0\mathrm{.}480,],[0\mathrm{.}492,0\mathrm{.}480,],[0\mathrm{.}492,0\mathrm{.}486,]]$