1. I am a three digit number 2. My second and last digit are the same
3. The product of the digits of the number one less than me is not zero 4. The number one less than me is divisible by 45
SUBJECT: MATH
Please help me with this riddle. Thanks.

Ameteorologist is studying the monthly rainfall in a section of the brazilian rainforest. she recorded the monthly rainfall, in inches, for last year. they were: 10.4, 10.3, 11.7, 11.1, 8.0, 4.4, 2.6, 1.8, 2.5, 4.4, 7.3, 9.5 fill in the missing values in the formula. what is the variance?