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3 years ago

7

A researcher finds that 15% of all commuters in a metropolitan area take the train to work. The researcher polls 250 people in t

he area and asks them whether they take the train to work. What is the number of trials for this binomial experiment?
A.15
B.38
C.250
D.265

1 answer:

Ierofanga [76]3 years ago

8 0

It’s the letter c. 250

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3 years ago

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Answer:

$AB =10.8166538264$

$AB \approx10.8$

Step-by-step explanation:

$A( - 5,6),B(1, - 3)$

$A( - 5,6),B(1, - 3) \\ A( { x }_{ 1 } , { y }_{ 1 } ),B( { x }_{ 2 } , { y }_{ 2 } )$

$AB = \sqrt{( { { x }_{ 2 } - { x }_{ 1 } ) }^{2} + {( { y }_{ 2 } - { y }_{ 1 } ) }^{2} }$

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