Could this graph represent a variable with a normal distribution? If so, estimate the mean and standard deviation. If not, explain your reasoning.

Yes

$\mu \approx 12.5$

$\sigma \approx 1.5$

Yes

$\mu \approx 13.5$

$\sigma \approx 2.5$

No, because the curve is symmetric

No, because the curve crosses the $x$-axis