Question 1
Let 1 stand for "any given period" and 2 stand for "base period." The formula of any index number can be written as
◦
value of index at 1 =
× 100.
◦
value of index at 1 =
.
◦
value of index at 1 =
× 100.
◦
value of index at 1 =
× 100.
◦
value of index at 1 =
.
Question 2
The table below shows hypothetical tuition costs at a Canadian university.
Year | Tuition |
2018 | $5000 |
2019 | $5050 |
2020 | $5100 |
2021 | $5150 |
2022 | $5200 |
TABLE 2-1
Refer to Table 2-1. Assume that 2018 is used as the base year, with the index number = 100. The value of the index number in 2017 is calculated as follows:
◦ (5000/5100) × 100 = 98.
◦ (5100/5000) × 100 = 102.
◦ 5000/5100 = 0.98.
◦ 5100/5000 = 1.02.
◦ 5100/5100 = 100.