The Tracking Signal $($TS$)$ values for $10$ forecasts are given below. Is the forecast biased $($overestimates or underestimates the actual values$)$ assuming the threshold range is $\backslash$pm $6?$

period

TS

period

TS

$1$

$1\mathrm{.}25$

$6$

$2\mathrm{.}23$

$2$

$2\mathrm{.}75$

$7$

$-6\mathrm{.}41$

$3$

$-4\mathrm{.}00$

$8$

$4\mathrm{.}90$

$4$

$3\mathrm{.}33$

$9$

$1\mathrm{.}01$

$5$

$1\mathrm{.}90$

$10$

$-1\mathrm{.}52$

Question $5$ options:

Yes, because at least one value of TS falls outside the range

No$,$ because most of values of the TS fall within the range

No$,$ because all positive values of TS fall within the range

Yes, because some values of TS are less than $0$