Exam S  

Statistics and Probabilistic Models
  • Average
    Pass Rate
  • Sponsoring SocietyCAS
  • Dates ActiveOct 2015 - Oct 2017
  • Sittings to Date5
  • Attempts per Sitting429
  • Total Passes/Attempts1,130 / 2,145
  • Highest Pass Rate63.3% Oct-17
  • Lowest Pass Rate34.5% Oct-15
  • Effective Pass Rate58.2%
  • Std Dev of Pass Rate11.2%
510306710/1/2017 12:00:00 AM63560340263.366.7 12/21/2017 12:00:00 AM52.7Oct-2017
4972675/1/2017 12:00:00 AM56051329452.557.3 7/12/2017 12:00:00 AM48.2May-2017
39086710/1/2016 12:00:00 AM45141724053.257.6 1/10/2017 12:00:00 AM45.7Oct-2016
2841674/1/2016 12:00:00 AM32228713341.346.3 7/10/2016 12:00:00 AM38.9Apr-2016
18016710/1/2015 12:00:00 AM1771236134.549.659.72/2/2016 12:00:00 AM34.5Oct-2015

Distribution of Travel Times to Designations

Number of People1949
5th percentile1.002.04
25th percentile1.582.58
75th percentile2.083.09
95th percentile3.083.38



Exam S

Exam Sitting  all sittings

1MFESOA Preliminary Exam167 55700-1.6400.00300.90730-1.533366cc
2MLCSOA Preliminary Exam167 5659-2.0600.0060.7165-1.813366cc
3CSOA Preliminary Exam167 17567-1.0340.001420.63713-0.703366cc
4LCCAS Preliminary Exam267 5412-2.2900.0000.0012-2.29dc3912
5STCAS Preliminary Exam267 6812-2.1800.0000.0012-2.18dc3912
6SCAS Preliminary Exam267 6700.0010580.0000.0010580.00dc3912
73LCAS Preliminary Exam267 22-7.0000.0000.002-7.00dc3912

Number of Years (Before)/After Passing Exam S
click on bar to see breakdown

Note on the travel time information above:
The histograms and the above two charts (near) exclude duplicate names and include changed names. Excluding duplicate names is necessary since travel time information related to them is unreliable and nonsensical- for instance, passing exam P three years before receiving a designation.

Including changed names has an impact on the relative number of people who passed other exams vs. the given exam. Their inclusion will lower this ratio since changed names will not properly link between previous/future exam passes. However, including changed names will not affect the average travel times, since travel times of changed names are not necessarily different than those of unchanged names.

For exam S on all sittings, there were 72 duplicate names, 493 changed names, and 21 duplicate and changed names.