day-0-mean-median-and-mode

Day 0: Mean, Median, and Mode

https://www.hackerrank.com/challenges/s10-basic-statistics

Problem

In this challenge, we practice calculating the mean, median, and mode.

Task

Given an array, X, of N integers, calculate and print the respective mean, median, and mode on separate lines. If your array contains more than one modal value, choose the numerically smallest one.

Note: Other than the modal value (which will always be an integer), your answers should be in decimal form, rounded to a scale of 1 decimal place (i.e., 12.3, 7.0 format).X

Input Format

The first line contains an integer, N, denoting the number of elements in the array. The second line contains N space-separated integers describing the array's elements.

Output Format

Print lines of output in the following order:

• Print the mean on a new line, to a scale of 1 decimal place.
• Print the median on a new line, to a scale of 1 decimal place.
• Print the mode on a new line; if more than one such value exists, print the numerically smallest one.

Sample Input 0

10
64630 11735 14216 99233 14470 4978 73429 38120 51135 67060

Sample Output 0

43900.6
44627.5
4978

My Solution

• Python (only built-in)
• Python (with numpy and scipy)