1. what is statistics study, collection , analysis, interpretation and presentation of data
  2. which of the following is a type of data Qualitative and Quantitative
  3. mean of the dataset {2,4,6,8,10} 6
  4. which measure of central tendency is affected by extreme values mean
  5. median of {1,3,5,7,9} 5
  6. mode of {1,2,2,3,4} 2
  7. in normal distribution mean = mode = median
  8. what is the range of the dataset {3,7,9,15} 12
  9. which of the following is a measure of dispersion range
  10. the probability of an impossible event is 0
  11. what is the standard deviation of the dataset {2,4,4,4,5,5,7,9} 2
  12. A histogram is used to display continuous data
  13. which is not a mode of central tendency variance
  14. the range is calculated by subtracting the smallest value of the dataset from the largest value
  15. middle value of an ordered data set is median
  16. which of the following measures how spread out the values of the data set are dispersion
  17. what type of graph is used to represent categorical data pie chart
  18. variance is the square of the standard deviation
  19. which of the following measures the strength and direction of a linear relation between two variables correlation coefficient
  20. -1 perfect negative correlation
  21. +1 perfect positive correlation
  22. 0 NO correlation
  23. main purpose of regression analysis to predict the value of the dependent variable from the independent variable
  24. which of the following is used to describe categorical data bar plot
  25. In statistics, a population refers to the entire set of individuals of interest
  26. which measure is least sensitive to extreme values median
  27. main characteristics of binomial experiment
    1. fixed number of trials
    2. two possible outcomes (thus, binomial)
    3. independent trials
  28. which of the following is a branch of statistics both inferential and descriptive production
  29. all wrong bc
  30. mode 13
  31. median 11, 13,13,17,19,23,25 17
  32. mean of tossing 4 coins in the air 2
  33. mean of 6,1,5,8,10 6
  34. geometric mean of 1,3,9,3 3
  35. variance of 3,9,5,6,7 4
  36. mean, mode and median of 5,8,12,17,12,14,6,8,12,10 10,12,11
  37. 5,5,6,7,9,10,13 8,5,7
  38. RANGE OF 7,47,8,42,47,95,42,96,2 94
  39. mean deviation bout mean for 7,47,8,42,47,95,42,96,3 27
  40. variance of 7,47,8,42,47,95,42,96,3 1024
  41. standard deviation 31.9
  42. 99 -17 82
  43. median 2 equal halves
  44. measure of dispersion standard deviation
  45. mode most frequency
  46. mean 5.2
  47. mode 5
  48. stats all