Assume x is $3,$ y is $7\mathrm{.}1$ and z is $\text{'}11\mathrm{.}5\text{'}.$ Which of the following statements is incorrect?

Question $5$ options:

the value of z is $11\mathrm{.}5$

the value of y is $7\mathrm{.}1$

type$($x$)$ is int

type$($z$)$ is str