It includes the employee performance for two different training groups. Group $1$ has $15$ employees, and Group $2$ has $15$ employees. What is the average performance for Group $1?$ Please enter your answer in the blank below, rounding to two significant figures: Training Group

$1$

$1$

$1$

$1$

$1$

$1$

$1$

$1$

$1$

$1$

$1$

$1$

$1$

$1$

$1$

$2$

$2$

$2$

$2$

$2$

$2$

$2$

$2$

$2$

$2$

$2$

$2$

$2$

$2$

$2$ Performance

$2$

$10$

$3$

$8$

$5$

$8$

$2$

$1$

$3$

$1$

$2$

$6$

$9$

$7$

$5$

$6$

$8$

$9$

$8$

$6$

$5$

$10$

$5$

$7$

$6$

$10$

$7$

$8$

$9$

$8$