Calculate the sample mean distance at which the bat first detects an insect. (Round your answer to four decimal places.) cm Calculate the sample variance and standard deviation for this data set. (Round your answers to two decimal places.) Variance _____ Standard deviation ____ Subtract 10 from each sample observation. For the new set of values, compute the mean. (Round your answer to four decimal places.)
Calculate the sample mean distance at which the bat first detects an insect. (Round your answer to four decimal places.) cm Calculate the sample variance and standard deviation for this data set. (Round your answers to two decimal places.) Variance _____ Standard deviation ____ Subtract 10 from each sample observation. For the new set of values, compute the mean. (Round your answer to four decimal places.)
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Although bats are not known for their eyesight, they are able to locate prey (mainly insects) by emitting high-pitched sounds and listening for echoes. A paper gave the following distances (in centimeters) at which a bat first detected a nearby insect.
61 24 42 56 27 83 52 42 68 34 45
Calculate the sample mean distance at which the bat first detects an insect. (Round your answer to four decimal places.)
cm
Calculate the sample variance and standard deviation for this data set. (Round your answers to two decimal places.)
Variance _____
Standard deviation ____
Subtract 10 from each sample observation. For the new set of values, compute the mean. (Round your answer to four decimal places.)
cm
Calculate the sample variance and standard deviation for the new data set. (Round your answers to two decimal places.)
Variance ________
Standard deviation _______
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