Matematika

Pertanyaan

4.Ukuran baju sekelompok orang dewasa adalah: 14,15,16,14,14,15,17,16,15,15,14,14
Modus:
Median
Mean:

5.Ukuran lingkaran kepala sekelompok anak adalah: 30cm,32cm,33cm,34cm,32cm,31cm,32cm,34cm,32
Modus:
Median:
Mean:

bantu aku ya please.

2 Jawaban

  • a. modus = 14
        median = 15 + 15 /2 = 15
        mean = 14,15,16,14,14,15,17,16,15,15,14,14 / 12 = 179 / 12 = 14.91

    b. modus = 32 cm
        median = 32
        mean = 290 / 9 = 32.2
  • 4.) Modus = 14, karena...
    14 = 5 kali
    15 = 4 kali
    16 = 2 kali
    17 = 1 kali

    Median = 14, 14, 14, 14, 14, 15, 15, 15, 15, 16, 16, 17 = 15 + 15 ÷ 2 = 15

    Mean = 14 + 14 + 14 + 14 + 14 + 15 + 15 + 15 + 15 + 16 + 16 + 17 = 179 ÷ 2 = 14,916...

    Modus = 32, karena ....
    30 = 1 kali
    31 = 1 kali
    32 = 4 kali
    33 = 1 kali
    34 = 2 kali


    Median = 30, 31, 32, 32, 32,33, 34, 34 = 32

    Mean = 32,222....
    30 + 31 + 32 + 32 + 32 + 32 + 33 + 34 + 34 = 290 ÷ 9
    = 32,222...

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