jolainjoseph01998

23.05.2020 • 

Mathematics

The U. S. Census bureau compiles census data on educational attainment of Americans. From the document, Current Population Reports the 2000 distribution of education attainment for U. S adults were obtained for 25 years old and older. The following is the distribution: Highest level Not HS graduate HS graduate Some college Associate’s degree Bachelor’s degree Advanced degree Percentage 15.8 33.2 17.6 7.8 17.0 8.6A random sample of 500 adults (25 years or older) taken this year gave the following frequency distribution: Highest level Not HS graduate HS graduate Some college Associate’s degree Bachelor’s degree Advanced degree Frequency 84 160 88 32 87 49 Decide at 5% level whether this year’s distribution of education attainment differs from the 2000 distribution.

Ответ:

bryantmadison0

21.10.2022

Mathematics

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40

Step-by-step explanation:

8x = 56

8x + 16 = 40

x = 3

8x = 24

x = 7

8x – 16 = 40

8(x – 2) = 40

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