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Calculate arithmetic mean and standard deviation

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Reference no: EM13910085

The following data come from a census of desert birds.

(A) Using these data, calculate the following: arithmetic mean; standard deviation; variance; standard error of the mean; and coefficient of variation.

(B) Which species of bird has the median species count?

(C) Which species of bird have the 25th and 75th percentile counts (or have the counts closest to these percentiles)?

Species

Count

Black Vulture

64

Turkey Vulture

23

Harris's Hawk

3

Red-tailed Hawk

16

American Kestrel

7

Gambel's Quail

148

Rock Dove

7

White-winged Dove

625

Mourning Dove

135

Greater Roadrunner

1

Great Horned Owl

2

Lesser Nighthawk

25

Black-chin. Hummingbird

1

Costa's Hummingbird

2

Gila Woodpecker

300

Ladder-back. Woodpecker

15

Gilded Flicker C

77

Ash-throated Flycatcher

173

Brown-crest. Flycatcher

128

Western Kingbird

1

Loggerhead Shrike

3

Bell's Vireo

10

Common Raven

12

Purple Martin

33

Violet-green Swallow

23

Verdin

282

Cactus Wren

230

Canyon Wren

2

Black-tail. Gnatcatcher

152

Northern Mockingbird

5

Curve-billed Thrasher

173

Phainopepla

18

Lucy's Warbler

67

Canyon Towhee

2

Black-throated Sparrow

33

Northern Cardinal

13

Great-tailed Grackle

1

Bronzed Cowbird

1

Brown-headed Cowbird

59

Hooded Oriole

4

Scott's Oriole

28

House Finch

297

House Sparrow

14

Reference no: EM13910085

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