Current location - Training Enrollment Network - Mathematics courses - See the table for the statistics of boys and girls in grades one to three of Lianhua Primary School. Complete the following questions as required. Grade gender, grade one, grade two
See the table for the statistics of boys and girls in grades one to three of Lianhua Primary School. Complete the following questions as required. Grade gender, grade one, grade two
(1) The statistical chart is as follows:

(2) As can be seen directly from the statistical chart, the grade with the least number of students is Grade One;

(3)( 1 10+90+ 120+ 130+ 1 10+ 100)÷3,

=660÷3,

=220 (person),

(4)( 1 10- 100)÷ 100,

= 10÷ 100,

= 10%;

So the answer is:1; 220; 10.