Neco Model Questions Vol1 2022 Government Question 8

Nigeria has adopted six constitutions in the years 1960, 1963, 1979, 1993, 1999 and 2005. For each constitution that has ended, the "effective stability score" is defined as \(\dfrac{\text{years in force}}{1+\text{number of amendments}}\). The data are: - 1960 constitution: 3 years, 2 amendments - 1963 constitution: 16 years, 1 amendment - 1979 constitution: 14 years, 3 amendments - 1993 constitution: 6 years, 0 amendments - 1999 constitution: 6 years, 2 amendments The 2005 constitution is still in force (17 years as of 2022) with 4 amendments. Compute the average effective stability score of the five ended constitutions. Assuming the next constitution will have the same average score and a projected duration of 12 years, determine the expected number of amendments (rounded to the nearest whole number) for the next constitution.