In order to promote Chinese traditional culture, a school organized 1 eighth-grade students to participate in the Chinese character dictation competition, and to understand the overall dictation abili

In order to promote Chinese traditional culture, a school organized 1 eighth-grade students to participate in the Chinese character dictation competition, and to understand the overall dictation ability of students, some of them were extracted.

(1) the sample size is: 16 ÷ .8 = 2;

The median score in the sample falls in the fourth group;

m=2×.4=8，

n=242=.12；

(2) Complete the histogram of frequency distribution, as follows:

(3)1(.4+.12)=52 (person).

Answer: There are about 52 eighth-grade students in this school who have excellent Chinese dictation ability.