Probability and statistics

Here is a list of all of the skills that cover probability and statistics! These skills are organized by grade, and you can move your mouse over any skill name to preview the skill. To start practising, just click on any link. IXL will track your score, and the questions will automatically increase in difficulty as you improve!

Here is a list of all of the skills that cover probability and statistics! To start practising, just click on any link.

Kindergarten skills

  1. Q.1
    More or less likely

Grade 1 skills

  1. V.1
    More, less and equally likely
  2. V.2
    Certain, probable, unlikely and impossible

Grade 2 skills

  1. X.1
    More, less and equally likely
  2. X.2
    Certain, probable, unlikely and impossible
  3. X.3
    Identify the mode
  4. X.4
    Interpret charts to find the mode
  5. X.5
    Combinations

Grade 3 skills

  1. BB.1
    More, less and equally likely
  2. BB.2
    Certain, probable, unlikely and impossible
  3. BB.3
    Find the probability
  4. BB.4
    Find the mode
  5. BB.5
    Find the mean
  6. BB.6
    Interpret charts to find mean and mode
  7. BB.7
    Combinations

Grade 4 skills

  1. AA.1
    Certain, probable, unlikely and impossible
  2. AA.2
    Understanding probability
  3. AA.3
    Find the probability
  4. AA.4
    Make predictions
  5. AA.5
    Find the mode
  6. AA.6
    Find the mean
  7. AA.7
    Find the median
  8. AA.8
    Interpret line plots to find the mode
  9. AA.9
    Interpret line plots to find the mean
  10. AA.10
    Interpret line plots to find the median
  11. AA.11
    Interpret charts to find mean and mode

Grade 5 skills

  1. FF.16
    Create relative frequency tables
  2. GG.1
    Understanding probability
  3. GG.2
    Find the probability
  4. GG.3
    Make predictions
  5. GG.4
    Experimental probability
  6. GG.5
    Combinations
  7. GG.6
    Find the mean
  8. GG.7
    Mean: find the missing number
  9. GG.8
    Interpret charts and graphs to find the mean
  10. GG.9
    Calculate mean, median and mode
  11. GG.10
    Mean, median and mode: find the missing number
  12. GG.11
    Interpret charts to find mean, median and mode
  13. GG.12
    Identify biased samples

Grade 6 skills

  1. EE.8
    Interpret categorical data
  2. FF.1
    Calculate mean
  3. FF.2
    Interpret charts and graphs to find mean
  4. FF.3
    Mean: find the missing number
  5. FF.4
    Calculate mean, median, mode and range
  6. FF.5
    Interpret charts and graphs to find mean, median, mode and range
  7. FF.6
    Mean, median, mode and range: find the missing number
  8. FF.7
    Identify representative and biased samples
  9. FF.8
    Identify discrete and continuous data
  10. GG.1
    Combinations
  11. GG.2
    Understanding probability
  12. GG.3
    Probability of one event
  13. GG.4
    Probability of opposite, mutually exclusive and overlapping events
  14. GG.5
    Make predictions using theoretical probability
  15. GG.6
    Experimental probability
  16. GG.7
    Make predictions using experimental probability
  17. GG.8
    Compound events: find the number of outcomes
  18. GG.9
    Compound events: find the number of sums
  19. GG.10
    Identify independent and dependent events

Grade 7 skills

  1. DD.1
    Calculate mean and range
  2. DD.2
    Calculate mean, median, mode and range
  3. DD.3
    Interpret charts to find mean and range
  4. DD.4
    Interpret charts to find mean, median, mode and range
  5. DD.5
    Mean and range: find the missing number
  6. DD.6
    Mean, median, mode and range: find the missing number
  7. DD.7
    Changes in mean and range
  8. DD.8
    Changes in mean, median, mode and range
  9. DD.9
    Identify an outlier and describe the effect of removing it
  10. DD.10
    Identify representative, random and biased samples
  11. EE.1
    Probability of simple events
  12. EE.2
    Probability of simple events - word problems
  13. EE.3
    Probability of opposite, mutually exclusive and overlapping events
  14. EE.4
    Experimental probability
  15. EE.5
    Make predictions
  16. EE.6
    Compound events: find the number of outcomes
  17. EE.7
    Counting principle
  18. EE.8
    Identify independent and dependent events

Grade 8 skills

  1. BB.1
    Calculate mean and range
  2. BB.2
    Calculate mean, median, mode and range
  3. BB.3
    Interpret charts to find mean and range
  4. BB.4
    Interpret charts to find mean, median, mode and range
  5. BB.5
    Mean and range: find the missing number
  6. BB.6
    Mean, median, mode and range: find the missing number
  7. BB.7
    Changes in mean and range
  8. BB.8
    Changes in mean, median, mode and range
  9. BB.9
    Quartiles
  10. BB.10
    Identify representative, random and biased samples
  11. CC.1
    Probability of simple events
  12. CC.2
    Probability of opposite, mutually exclusive and overlapping events
  13. CC.3
    Experimental probability
  14. CC.4
    Make predictions
  15. CC.5
    Compound events: find the number of outcomes
  16. CC.6
    Counting principle
  17. CC.7
    Identify independent and dependent events
  18. CC.8
    Probability of independent events
  19. CC.9
    Probability of independent and dependent events

Grade 9 skills

  1. X.1
    Theoretical probability
  2. X.2
    Experimental probability
  3. X.3
    Compound events: find the number of outcomes
  4. X.4
    Identify independent and dependent events
  5. X.5
    Probability of independent and dependent events
  6. Y.1
    Calculate mean, median, mode and range
  7. Y.2
    Interpret charts to find mean, median, mode and range
  8. Y.3
    Mean, median, mode and range: find the missing number
  9. Y.4
    Quartiles
  10. Y.5
    Identify biased samples

Grade 10 skills

  1. GG.1
    Theoretical and experimental probability
  2. GG.2
    Compound events: find the number of outcomes
  3. GG.3
    Independent and dependent events
  4. GG.4
    Factorials
  5. GG.5
    Permutations
  6. GG.6
    Counting principle
  7. GG.7
    Permutation and combination notation
  8. GG.8
    Geometric probability
  9. HH.1
    Mean, median, mode and range
  10. HH.2
    Quartiles
  11. HH.3
    Identify biased samples
  12. HH.4
    Mean absolute deviation
  13. HH.5
    Variance and standard deviation

Grade 11 skills

  1. Y.1
    Introduction to probability
  2. Y.2
    Calculate probabilities of events
  3. Y.3
    Permutations
  4. Y.4
    Counting principle
  5. Y.5
    Permutation and combination notation
  6. Y.6
    Find probabilities using permutations and combinations
  7. Y.7
    Find probabilities using two-way frequency tables
  8. Y.8
    Identify independent events
  9. Y.9
    Probability of independent and dependent events
  10. Y.10
    Find conditional probabilities
  11. Y.11
    Independence and conditional probability
  12. Y.12
    Find conditional probabilities using two-way frequency tables
  13. Y.13
    Find probabilities using the addition rule
  14. Y.14
    Find probabilities using the normal distribution

Grade 12 skills

  1. Y.1
    Introduction to probability
  2. Y.2
    Calculate probabilities of events
  3. Y.3
    Combinations and permutations
  4. Y.4
    Find probabilities using combinations and permutations
  5. Y.5
    Find probabilities using two-way frequency tables
  6. Y.6
    Identify independent events
  7. Y.7
    Find conditional probabilities
  8. Y.8
    Independence and conditional probability
  9. Y.9
    Find conditional probabilities using two-way frequency tables
  10. Y.10
    Find probabilities using the addition rule
  11. Z.1
    Identify discrete and continuous random variables
  12. Z.2
    Write a discrete probability distribution
  13. Z.3
    Graph a discrete probability distribution
  14. Z.4
    Expected values of random variables
  15. Z.5
    Variance of random variables
  16. Z.6
    Standard deviation of random variables
  17. Z.7
    Write the probability distribution for a game of chance
  18. Z.8
    Expected values for a game of chance
  19. Z.9
    Choose the better bet
  20. Z.10
    Find probabilities using the binomial distribution
  21. Z.11
    Mean, variance and standard deviation of binomial distributions
  22. Z.12
    Find probabilities using the normal distribution I
  23. Z.13
    Find probabilities using the normal distribution II
  24. Z.14
    Find z-values
  25. Z.15
    Find values of normal variables
  26. Z.16
    Distributions of sample means
  27. Z.17
    The Central Limit Theorem
  28. Z.18
    Use normal distributions to approximate binomial distributions
  29. AA.1
    Identify biased samples
  30. AA.2
    Variance and standard deviation
  31. AA.3
    Identify an outlier
  32. AA.4
    Identify an outlier and describe the effect of removing it
  33. AA.5
    Outliers in scatter plots
  34. AA.6
    Match correlation coefficients to scatter plots
  35. AA.7
    Calculate correlation coefficients
  36. AA.9
    Interpret regression lines
  37. AA.10
    Analyze a regression line of a data set
  38. AA.11
    Analyze a regression line using statistics of a data set
  39. AA.12
    Find confidence intervals for population means
  40. AA.13
    Find confidence intervals for population proportions
  41. AA.14
    Interpret confidence intervals for population means