Question

89 60 75 45 60 80 70 55 58 65 77 83 42 30 mean median modus​

Answer 1

Resposta:

Hi!

First we must sort the data set in ascending order.

30, 42, 45, 55, 58, 60, 60, 65, 70, 75, 77, 80, 83, 89

Mean (M)  is the ratio of the sum of the terms of a data set by the sample size:

M = (30+42+45+55+58+60+60+65+70+75+77+80+83+89)/14

M = 889/14

M = 63,5

Median (Me) is the central trend measure that separates the distribution of data into two sets with the same amount of elements. If the sample is paired, the median is the arithmetic mean of the two central terms of the ordered data

Me = (60+65)/2

Me = 62,5

Modus (Mo) is the most frequent value of distribution

Mo = 60