Zhang Qiang's calligraphy works entered the competition, and the scores of seven judges were 89 points, 94 points, 66 points, 90 points, 94 points, 88 points and 97 points respectively.

=6 18÷7

88.29 points

A: The average score of these seven judges is about 88.29.

(2) Excluding the highest score of 97 and the lowest score of 66, the average score is:

(89+94+90+94+88)÷5

=455÷5

=9 1 (minimum)

A: The average score at this time is 9 1.