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3 years ago

Help need answered ASAP!

Mathematics

2 answers:

Paraphin [41]3 years ago

8 0

1 3/4 because the comments below moi dudes ;)

Lyrx [107]3 years ago

6 0

Answer:

Option B is correct

$1\frac{3}{4}$ miles will Lucas walk if he takes route B

Step-by-step explanation:

As per the statement:

There are two routes Lucas can take to walk to school.

Route A is $2\frac{1}{8} = \frac{17}{8}$ miles and is 3/8 mile longer than route B

here, b is the length of route B.

The equation we get;

$b+\frac{3}{8} = 2\frac{1}{8}$

⇒ $b+\frac{3}{8} = \frac{17}{8}$

Subtract $\frac{3}{8}$ from both sides we have;

⇒ $b = \frac{17}{8} -\frac{3}{8} = \frac{17-3}{8} = \frac{14}{8} = \frac{7}{4} = 1\frac{3}{4}$

Therefore, $1\frac{3}{4}$ miles will Lucas walk if he takes route B

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Answer:

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The confidence interval for the difference of two proportions would be given by this formula

$(\hat p_1 -\hat p_2) \pm z_{\alpha/2} \sqrt{\frac{\hat p_1(1-\hat p_1)}{n_1} +\frac{\hat p_2 (1-\hat p_2)}{n_2}}$

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And we know that the margin of erro is given by:

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3 years ago

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4 years ago

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3 years ago

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