February 12, 2009 marked the 200th anniversary of Charles Darwin's birth. To celebrate, Gallup, a national polling organization, surveyed 1,018 Americans about their education level and their beliefs about the theory of evolution. The survey results are displayed in the provided two-way table.   High School or Less Some College College Graduate Postgraduate Total Believe 80 133 121 63 397 Do Not Believe 103 94 48 9 254 No Opinion 197 98 59 13 367 Total 380 325 228 85 1,018     a. ​What proportion of respondents have a college degree? Round your answer to three decimal places.  ​ ​ b. ​What proportion of non-believers have a high school education or less? Use four decimal places in your answer.  ​

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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February 12, 2009 marked the 200th anniversary of Charles Darwin's birth. To celebrate, Gallup, a national polling organization, surveyed 1,018 Americans about their education level and their beliefs about the theory of evolution. The survey results are displayed in the provided two-way table.

 

High School or Less

Some College

College Graduate

Postgraduate

Total

Believe

80

133

121

63

397

Do Not Believe

103

94

48

9

254

No Opinion

197

98

59

13

367

Total

380

325

228

85

1,018

 

 

a. ​What proportion of respondents have a college degree? Round your answer to three decimal places. 

b. ​What proportion of non-believers have a high school education or less? Use four decimal places in your answer. 

 

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