Researchers wanted to know if living in schools protects minnows from predators. The researchers placed different numbers of minnows into separate aquaria. Then, the researchers counted how many times per minute predatory fish approached the schools. Calculate the sample means, ?¯,x¯, and sample standard deviations, ?,s, for the number of times per minute a predator approached each school size. Round ?¯x¯ to one decimal place. Round ?s to two decimal places. Minnow school size Trial 3 5 10 15 20 1 0.9 0.7 0.4 0.4 0.1 2 0.8 0.8 0.5 0.5 0.1 3 0.7 0.9 0.6 0.3 0.2 4 1.1 0.6 0.8 0.2 0.3 5 1.0 1.0 0.7 0.6 0.3

Researchers wanted to know if living in schools protects minnows from predators. The researchers placed different numbers of minnows into separate aquaria. Then, the researchers counted how many times per minute predatory fish approached the schools. Calculate the sample means, ?¯,x¯, and sample standard deviations, ?,s, for the number of times per minute a predator approached each school size. Round ?¯x¯ to one decimal place. Round ?s to two decimal places. Minnow school size Trial 3 5 10 15 20 1 0.9 0.7 0.4 0.4 0.1 2 0.8 0.8 0.5 0.5 0.1 3 0.7 0.9 0.6 0.3 0.2 4 1.1 0.6 0.8 0.2 0.3 5 1.0 1.0 0.7 0.6 0.3

Linear Algebra: A Modern Introduction

4th Edition

ISBN:9781285463247

Author:David Poole

Publisher:David Poole

Chapter2: Systems Of Linear Equations

Section2.4: Applications

Problem 27EQ

See similar textbooks

	Minnow school size
Trial	3	5	10	15	20
1	0.9	0.7	0.4	0.4	0.1
2	0.8	0.8	0.5	0.5	0.1
3	0.7	0.9	0.6	0.3	0.2
4	1.1	0.6	0.8	0.2	0.3
5	1.0	1.0	0.7	0.6	0.3

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