In order to understand teachers’ satisfaction with online teaching and research activities, a school district used the “online SMS platform” to conduct a survey on 300 teachers in the district aged be

In order to understand teachers’ satisfaction with online teaching and research activities, a school district used the “online SMS platform” to conduct a survey on 300 teachers in the district aged between 20 and 60.

Answer: Solution: (1) From Figure A, we can see that among the teachers randomly checked, the largest age group is 26 to 30 years old;

So the answer is: 26 to 30 ;

(2) The total number of satisfied people = 300×83=249 people,

The number of satisfied people in the age group of 26 to 30 years old = 249-41-50-40-18 -7=249-156=93 people;

Complete the statistical chart as shown in the figure;

(3) Satisfaction level between 26 and 30 years old =93300×0.39×100≈79 ,

Satisfaction between 41 and 50 years old = 40300 × 0.15 × 100 ≈ 89,

Therefore, the age group of 41 to 50 years old is more interested in online teaching and research activities than the age group of 26 to 30 years old. High satisfaction.