Calculate standard deviation, variance, mean, median, and mode
Separate numbers with commas, spaces, or both
• Sample Data: 1, 2, 3, 4, 5
• Grades: 85, 92, 78, 96, 88
• Prices: 10.50, 12.75, 9.99, 15.25
• Mean: Average of all numbers
• Median: Middle value when sorted
• Mode: Most frequent value(s)
• Variance: Average squared deviation from mean
• Standard Deviation: Square root of variance