\(\mu = 30\), \(\sigma = 5\), \(z = -2\).

We use the formula for normal distribution:

\(z=\frac{x-\mu}{\sigma}\)

\(x=\sigma z+\mu\)

\(x=5(-2)+30\)

\(x=-10+30\)

\(x=20\)

The raw score corresponding to \(z = -2\) for normal distribution with \(\mu = 30\), \(\sigma = 5\) is 20.

We use the formula for normal distribution:

\(z=\frac{x-\mu}{\sigma}\)

\(x=\sigma z+\mu\)

\(x=5(-2)+30\)

\(x=-10+30\)

\(x=20\)

The raw score corresponding to \(z = -2\) for normal distribution with \(\mu = 30\), \(\sigma = 5\) is 20.