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The Statistical Answer of Typing Number in One Minute of Grade Four Students in Song Lin Primary School.
(1)22+ 15=37 (person)

Answer: 37 people typed below 1 minute.

(2) At present, the number of male students typing at 1 min is 38.

(3) The total number of people typing 1 min is the least.

(4) 1 minute typing. At the age of 20-30, there are three fewer boys than girls, and at the age of 30, there are four fewer boys than girls.

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