General Normal Distributions (HSC SSCE Mathematics Advanced): Quizzes

$\mu = 0$ and $\sigma = 1$

At $x = \mu - \sigma$ and $x = \mu + \sigma$

1

They all coincide at $x = \mu$

$z = 1.5$

$x = 60$

Approximately 95%

Approximately 68%

$Q_1 = \mu - 0.67\sigma$

$\mu - 2.70\sigma$ to $\mu + 2.70\sigma$