Product 1 | ||||||
Outcome | p | x | px | x-E(x) | (x-E(x))^{2} | p(x-E(x))^{2} |
Pessimistic | 10% | -$2,199 | -$219.9 | -$4,299 | 18,481,401 | 1,848,140 |
Moderate | 60% | $2,116 | $1,269.6 | $16 | 256 | 153.6 |
Optimistic | 30% | $3,501 | $1,050.3 | $1,401 | 1,962,801 | 588,840.3 |
100% | E(x) = | 2,100.0 | variance = | 2,437,134 | ||
standard deviation = | $1,516.132 | |||||
Product 2 | ||||||
Outcome | p | x | px | x-E(x) | (x-E(x))^{2} | p(x-E(x))^{2} |
Pessimistic | 20% | -$500 | -$100 | -$2,600 | 6,760,000 | 1,352,000 |
Moderate | 40% | $2,000 | $800 | -$100 | 10,000 | 4,000 |
Optimistic | 40% | $3,500 | $1,400 | $1,400 | 1,960,000 | 784,000 |
100% | E(x) = | $2,100 | variance = | 2,140,000 | ||
standard deviation = | $1,462.874 |