Mipango

Kikokotoo cha Wastani, Wastani wa Kati na Modi

Weka namba zako zikitenganishwa kwa koma, nafasi au mistari mipya.

Tumia nukta kwa desimali (2.5), na koma au nafasi kati ya thamani

Tokeo

Weka thamani kisha bonyeza Kokotoa ili kuona tokeo.

Fomula

xˉ=x1+x2+⋯+xnn\bar{x} = \frac{x_1 + x_2 + \cdots + x_n}{n}

The mean is the sum divided by how many values there are.

range=max⁡−min⁡\text{range} = \max - \min

The range measures how spread out the data is.

Jinsi ya kutumia kikokotoo hiki

  1. Paste or type the numbers.
  2. Press Calculate. The data is sorted for you to find the median.

Mfano uliotatuliwa

Data: 2, 4, 4, 4, 5, 5, 7, 9

Sum = 40 and n = 8, so the mean is 5.

The middle two values are 4 and 5, so the median is 4.5. The mode is 4 and the range is 9 − 2 = 7.

Maswali yanayoulizwa mara kwa mara

What if no value repeats?

Then there is no mode. If several values tie for most frequent, all of them are listed.

Mean or median — which should I use?

The median is less affected by extreme values, so it often describes skewed data better.

Jifunze zaidi