Q: What is the sum of 1 2 3 4...76?

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-3 + 4 + (-2) = 1 + (-2) = 1 - 2 = -1.

3

Standard deviation = sqrt(variance) Variance = E[X2] - E[X]2 E[X] = sum(X)/n = 35/9, so E[X]2 = 1225/81 E[X2] = sum(X2)/n = 189/9 = 1701/81 Variance = 476/81 Standard deviation = sqrt(476/81) ~ 2.42

1 1/2 + 1 1/2 = 3

2 and 1 .their sum is 3 .difference is 1

Related questions

yes 1428/3 = 476 if you add numbers up and you can divide sum by 3 then it is divisible by 3 1+4+2+8 = 15 which is divisible by 3

3 + 2 = 5. (sum) 3 - 2 = 1. (difference)

1/2+1/2=1 1/3+1/3=2/3 1-2/3=1/3 Answer: 1/3

-3 + 4 + (-2) = 1 + (-2) = 1 - 2 = -1.

3

3

Standard deviation = sqrt(variance) Variance = E[X2] - E[X]2 E[X] = sum(X)/n = 35/9, so E[X]2 = 1225/81 E[X2] = sum(X2)/n = 189/9 = 1701/81 Variance = 476/81 Standard deviation = sqrt(476/81) ~ 2.42

1 1/2 + 1 1/2 = 3

2 and 1 .their sum is 3 .difference is 1

-2

A sum of 4 is more likely. Out of the 36 possible outcomes with a pair of 6-sided dice, only one will have a sum of 2 {1-1}. Three of the possibilities sum to 4. {1-3, 2-2, 3-1}

1 + 2 = 3