Although bats are not known for their eyesight, they are able tolocate prey (mainly insects) by emitting high-pitched sounds andlistening for echoes. A paper gave the following distances (incentimeters) at which a bat first detected a nearby insect. 23 4027 56 52 34 42 61 68 45 83 (a) Compute the sample mean distance atwhich the bat first detects an insect. (Round your answer to threedecimal places.) cm (b) Compute the sample variance and standarddeviation for this data set. (Round your answers to two decimalplaces.) Variance?
Standard deviation?
