Example: Rails in a railway track

Example: Find the mean of the following: 1, 2, 3, 4, 5
Step 1: Find the sum of all numbers → 1+2+3+4+5 = 15
Step 2: Divide total by the number of numbers → 15 ÷ 5 = 3

Example:

Example: Find the range of the following: 1, 2, 4, 5, 5
Step 1: Sort the list → 1, 2, 4, 5, 5
Step 2: Highest number → 5; Lowest number → 1
Step 3: Difference between the highest and the lowest numbers in the list → 5 - 1 = 4. Therefore, the range is 4.

Example: 1, __ , 3, 4, 5; mean=3
Step 1: Let N be the missing number.
Step 2: We know, Mean = (Sum of all numbers)/(Number of numbers);
Therefore, Sum of all numbers = Mean x Number of numbers
→ 1 + N + 3 + 4 + 5 = 3 x 5 → N + 13 = 15 → N = 15-13 → N = 2

Instructions:
1. Click a card.
2. Read the name or definition.
3. Find its match by clicking an other card.
4. Continue until all cards are flipped.

Instructions:
1. Click a card.
2. Read the name or definition.
3. Find its match by clicking an other card.
4. Continue until all cards are flipped.