7. Between which year did the largest decrease in children taking swimming lessons occur?
1990-1991
1991-1992
1992-1993
1993-1994
1994-1995
The largest decrease in children taking swimming lessons occurred between 1993-1994 and 1994-1995.
To determine the largest decrease in children taking swimming lessons, we need to compare the number of children taking swimming lessons in each of the given years. Let's calculate the difference in the number of children taking swimming lessons between each pair of years:
1990-1991: To find the difference, subtract the number of children taking swimming lessons in 1991 from the number in 1990.
1991-1992: Calculate the difference by subtracting the number of children taking swimming lessons in 1992 from the number in 1991.
1992-1993: Find the difference by subtracting the number of children taking swimming lessons in 1993 from the number in 1992.
1993-1994: Calculate the difference by subtracting the number of children taking swimming lessons in 1994 from the number in 1993.
1994-1995: Find the difference by subtracting the number of children taking swimming lessons in 1995 from the number in 1994.
The largest decrease will be the year pair with the highest negative difference. Compare the differences and identify the year pair with the largest decrease in children taking swimming lessons.