Juvenile ground squirrels respond to predators by making “alarm calls” that can alert others to danger. A biologist conducted a study to investigate how squirrels respond to these alarm calls: run to burrow or freeze. The biologist played recordings of alarm calls for three samples of ground squirrels, grouped by age, and observed the squirrels’ responses. The data for the three age levels are shown in the table. Run to BurrowFreezeTotal1 to 5 Days Old2118396 to 15 Days Old16244016 to 25 Days Old12719Total494998If ground squirrels at different ages respond to the alarm signals in the same proportions, what would be the expected count for 6- to 15-day-old squirrels that freeze? 2440the fraction 24 over 40A2449the fraction 24 over 49B((40)(49)98)the fraction 40 times 49 over 98C((19)(49)98)the fraction 19 times 49 over 98D24 Juvenile ground squirrels respond to predators by making "alarm calls" that can alert others to danger. A biologist conducted a study to investigate how squirrels respond to these alarm calls: run to burrowor freeze. The biologist played recordings of alarm calls for three samples of ground squirrels, grouped by age, and observed the squirrels' responses. The data for the three age levels are shown in the table.Run to BurrowFreezeTotal1 to 5 Days Old2118396 to 15 Days Old162440Submit16 to 25 Days Old12719Total494998If ground squirrels at different ages respond to the alarm signals in the same proportions, what would be the expected count for 6- to 15-day-old squirrels that freeze?24А4024В49(40)(49)98(19)(49)98E24

Expected Value = [(Row total x Column total)/Grand total]

Answered: uvenile ground squirrels respond to…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Juvenile ground squirrels respond to predators by making “alarm calls” that can alert others to danger. A biologist conducted a study to investigate how squirrels respond to these alarm calls: run to burrow or freeze. The biologist played recordings of alarm calls for three samples of ground squirrels, grouped by age, and observed the squirrels’ responses. The data for the three age levels are shown in the table.

	Run to Burrow	Freeze	Total
1 to 5 Days Old	21	18	39
6 to 15 Days Old	16	24	40
16 to 25 Days Old	12	7	19
Total	49	49	98

If ground squirrels at different ages respond to the alarm signals in the same proportions, what would be the expected count for 6- to 15-day-old squirrels that freeze?

2440

the fraction 24 over 40

A
2449

the fraction 24 over 49

B
((40)(49)98)

the fraction 40 times 49 over 98

C
((19)(49)98)

the fraction 19 times 49 over 98

D
24

Juvenile ground squirrels respond to predators by making "alarm calls" that can alert others to danger. A biologist conducted a study to investigate how squirrels respond to these alarm calls: run to burrow
or freeze. The biologist played recordings of alarm calls for three samples of ground squirrels, grouped by age, and observed the squirrels' responses. The data for the three age levels are shown in the table.
Run to Burrow
Freeze
Total
1 to 5 Days Old
21
18
39
6 to 15 Days Old
16
24
40
Submit
16 to 25 Days Old
12
7
19
Total
49
49
98
If ground squirrels at different ages respond to the alarm signals in the same proportions, what would be the expected count for 6- to 15-day-old squirrels that freeze?
24
А
40
24
В
49
(40)(49)
98
(19)(49)
98
E
24

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