Sunday, August 1, 2010

Activity in Mathematics 2 - BSBA Basic Statistics

1. The following are the numbers of customers a restaurant served for lunch on 120 week-days:

50 64 55 51 60 41 71 53 63 64 46 59
66 45 61 57 65 62 58 65 55 61 50 55
53 57 58 66 53 56 64 46 59 49 64 42
47 59 62 58 63 58 59 64 45 42 53 48
78 76 48 75 72 48 59 58 65 64 57 71
45 78 74 72 64 58 48 42 47 49 53 64
66 48 44 55 77 65 67 72 42 48 65 68
64 58 59 64 57 58 66 48 42 64 58 62
47 65 49 62 55 54 53 69 58 49 57 61
59 64 55 43 44 48 64 62 60 70 75 41

Group these figures into a distribution having the classes

40 – 44, 45 – 49, 50 – 54, 55 – 59, ... , 75 – 79

2. Convert the distribution obtained in Exercise 1 into a
  • percentage distribution
  • “less than” cumulative frequency
  • “more than” cumulative percentage distribution
  • “or more” cumulative distribution beginning with “40 or more”
3. Using the distribution Exercise 1, draw a
  • Histogram
  • Bar chart
  • Frequency polygon
  • Ogive of the cumulative distribution

No comments:

Post a Comment