Answer:
Mean = 587
Median = 585
Mode = 590
Standard deviation = 112.538
The mean and the median
Yes, both mean and median have close values
Step-by-step explanation:
Given the data:
365, 420, 450, 460, 480, 480, 510, 520, 520, 550, 550, 560, 570, 580, 580, 590, 590, 590, 590, 600, 600, 620, 630, 660, 680, 700, 710, 775, 790, 890
The mean, m = Σx / n = 17610 / 30
Mean = 587
The median = 1/2(n+1)th term
Median = 1/2(31)th term
Median = 15.5th = (580+590) / 2 = 585
The mode = 590 (observation with highest frequency, 4)
Standard deviation, s = √Σ(x-m)²/(n-1)
s = 112.538
