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3 years ago

write the equation for the following statement. reid is 3 years old. his sister is 4 times older. how old is reid sister.?

2 answers:

6 0

Reid's sister is 12 years old. Because Reid's sister is 4 TIMES older, this indicates it is a multiplication problem. 3 times 4 is 12.

sveticcg [70]3 years ago

3 0

R = 3
s = 4r

s = 4 * 3 = 12 <==

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95% confidence interval for the true mean cholesterol content of all such eggs.

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Step(i):-

Given mean of the sample x⁻ = 185 milligrams

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$t_({\frac{\alpha }{2} , n-1 }) = t_{0.025 ,11} = 2.2010$

Step(ii):-

95% confidence interval for the true mean cholesterol content of all such eggs.

$(x^{-} - t_{\frac{\alpha }{2} } \frac{S}{\sqrt{n} } , x^{-} + t_{\frac{\alpha }{2} } \frac{S}{\sqrt{n} })$

$(185 - 2.2010 \frac{17.6}{\sqrt{12} } , 185 + 2.2010 \frac{17.6}{\sqrt{12} })$

( 185 - 11.1825 , 185 + 11.1825)

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Final answer:-

95% confidence interval for the true mean cholesterol content of all such eggs.

(173.8175 , 196.1825)

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