Mean, Median, and Mode Problem Statement

Given an integer array ARR of size N, you need to compute the following three statistical measures:

  1. Mean: Implement the function mean() to calculate the mean of the array.
  2. Median: Implement the function median() to calculate the median of the array.
  3. Mode: Implement the function mode() to determine the mode of the array.

Return these measures in the specified format.

Example:

Input:
ARR = {1, 1, 2, 2, 3, 3, 4}
Output:
Mean: P Q
Median: P Q
Mode: 1
Explanation:

For the given array, the mode will be 1, as it is the smallest of all the possible modes (1, 2, and 3).

Constraints:

  • 1 <= T <= 5
  • 1 <= N <= 105
  • 1 <= ARR[i] <= 106
  • Where ARR[i] denotes the ith element of the array.
  • Time limit: 1 sec
Note:
  • Mean and Median should be returned in the form P/Q, where P and Q are coprime integers, and Q ≠ 0.
  • If multiple elements have the same highest frequency, return the smallest one as the mode.
AnswerBot
4d

Implement functions to calculate mean, median, and mode of an integer array.

  • Calculate mean by summing all elements and dividing by total count

  • Calculate median by sorting array and finding middle eleme...read more

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