find the indicated iq score. the graph to the right depicts iq scores of adults, and those scores are…

Explanation:

Step1: Use z - score formula

The z - score formula is $z=\frac{x-\mu}{\sigma}$, where $x$ is the value from the data set, $\mu$ is the mean, and $\sigma$ is the standard deviation. We need to find the z - score corresponding to the area of 0.99 to the left of the value $x$ in the standard normal distribution table. Looking up the value 0.99 in the standard normal table, the z - score $z\approx2.33$.

Step2: Rearrange formula to solve for $x$

We know that $z=\frac{x - \mu}{\sigma}$, so we can rewrite it as $x=\mu+z\sigma$. Given $\mu = 100$, $\sigma=15$, and $z = 2.33$. Substitute the values into the formula: $x=100+2.33\times15$.

Step3: Calculate the value of $x$

First, calculate $2.33\times15 = 34.95$. Then, $x=100 + 34.95=134.95$.

Answer:

135