Probability and statistics symbols

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Across
  1. 2. ρX,Y (correlation of random variables X and Y)
  2. 5. N(μ,σ2) normal distribution
  3. 6. Q2 50% of population are below this value = median of samples
  4. 8. MR
  5. 9. σX standard deviation value of random variable X
  6. 10. Mo (value that occurs most frequently in population)
  7. 12. σ2 variance of population values
  8. 14. ∑∑
  9. 15. ∑ (sum of all values in range of series)
Down
  1. 1. Md (half the population is below this value)
  2. 3. Q3 75% of population are below this value
  3. 4. μ mean of population values
  4. 7. Q1 25% of population are below this value
  5. 11. U(a,b) uniform distribution
  6. 13. covariance of random variables X and Y