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Lapatulllka [165]

2 years ago

14

Reggie and Jay go on a walk every morning. Reggie walks 2 1/4 miles. Jay walks 1 3/8 miles less then Reggie. What is the total d

istance they walk every morning

1 answer:

leva [86]2 years ago

4 0

Answer:1 1/8

Step-by-step explanation:

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Answer:

Following are the solution to the given question:

Step-by-step explanation:

Given:

$N= 177\\\\a=46\\\\b=52\\\\c=36\\\\d=43$

$\to \chi _{1}^{2}=\frac{N(ad-bc)^{2}}{(a+c)(b+d)(a+b)(c+d)}$

$=\frac{177((46\times 43)-(52 \times 36))^{2}}{(98)(79)(82)(95)}\\\\=\frac{177((1978)-(1872))^{2}}{60310180}\\\\=\frac{177(106)^{2}}{60310180}\\\\=\frac{177(11236)}{60310180}\\\\=\frac{1988772}{60310180}\\\\= 0.032976$

P-value= $CHIDIST(0.032976,1) = 0.86.$

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