Máy tính điểm Z

Use the free online Máy tính điểm Z tool. Fast, private and easy to use — runs entirely in your browser. Part of our Máy tính thống kê collection.

Máy tính trung vị & mốt

Numbers (comma or space separated)

Find the median, mode, sum, count, minimum and maximum of any list of numbers.

Numbers (comma or space separated)

Get both the population and sample standard deviation of a data set, with the mean shown for context.

Numbers (comma or space separated)

Measure how spread out a data set is with population and sample variance.

Value x Mean μ Standard deviation σ

See how many standard deviations a value lies from the mean with z = (x − μ) / σ.

n (total items) r (chosen items)

Count arrangements and selections instantly — nPr for ordered picks and nCr for unordered ones.

Numbers (comma or space separated)

Find the range of a data set — the difference between its largest and smallest values.

Numbers (comma or space separated)

Compare the relative spread of data sets with CV = σ / μ expressed as a percentage.

Numbers (comma or space separated)

Compute the midrange — the midpoint between the minimum and maximum of a data set.

Is the Máy tính điểm Z free to use?

Yes. The Máy tính điểm Z is completely free with no sign-up, no limits and no watermarks. You can use it as many times as you like.

Is the Máy tính điểm Z safe and private?

Absolutely. The Máy tính điểm Z runs entirely in your browser, so your data never leaves your device and nothing is uploaded to a server.

Do I need to install anything to use the Máy tính điểm Z?

No installation is needed. The Máy tính điểm Z works instantly online in any modern browser on desktop, tablet or mobile.

Does the Máy tính điểm Z work on mobile phones?

Yes. The Máy tính điểm Z is fully responsive and works smoothly on iPhone, Android and any other device.