Question

rainforest data: mean = 7 $sigma^{2}=12.405$ $sigmaapprox3.522$ when using the formula $z_{x}=\frac{x - mu}{sigma}$ for the z - score for the 11.7 data point: $x = 11.7$; $mu = 7$ complete $z_{11.7}$ -1.3 0.4 1.3 3.3

Explanation:

Step1: Identify values for formula

Given $x = 11.7$, $\mu=7$, $\sigma\approx3.522$.

Step2: Substitute values into z - score formula

$z_{x}=\frac{x - \mu}{\sigma}=\frac{11.7 - 7}{3.522}=\frac{4.7}{3.522}\approx1.3$

Answer:

$1.3$