A farmer has just tilled his 55-meter by 48-meter field. To survey his field, the farmer begins in one corner and walks the length of the field. He then turns and walks the width before
crossing diagonally across the field to the original corner. How far does the farmer walk

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?