Ѹ֡һշ 4
ʶԵ

1.

    • (relative  frequency) ͧѹҤ    ѵǹҧѹҤѺ
    • ѷ (relative  cumulative frequency) ͧѹҤ    ѵǹҧͧѹҤѺͧ
Ẻ֡Ѵ  

2. ɮͧǡ

c ,   d   繤Ҥ
   
   
   
   
   

3. ҡҧͧ

ҧͧ ʶԵŢ˹ҡ   ͧ  ֡ҧͧ˹ҧ ͧ

ҧͧ Դ
    • ŢԵ (arithmetic mean)
    • ҹ (mode)
    • Ԥ (harmonic mean)

Ẻ֡Ѵ
ҤŢԵ (Arithmetic mean) ͧ㹢͵仹

1.    2, 4, 7, 8, 9
2.    6, 8, 7, 5, 3, 7

: ó 侺 :     ǴԵʵ ç¹ʵԷ 2