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gizmo_the_mogwai [7]
3 years ago
5

On his way to work, a man notices that 9 of the 16 traffic lights are green. Is there statistical significance to say that these

traffic lights are programmed to allow ease of travel?
Yes, because the results are unlikely to occur by chance.
Yes, because the man encountered a high number of green traffic lights.
No, because the man didn't encounter enough traffic lights on this trip for a valid sample size.
No, because the results are likely to occur by chance.
Mathematics
2 answers:
olasank [31]3 years ago
6 0
Yes because the results are unlikely to occur by chance, is what I think .
jonny [76]3 years ago
6 0

Answer:

The answer is No, the results are likely to occur by chance.

Step-by-step explanation:

On his way to work, a man notices that 9 of the 16 traffic lights are green. Is there statistical significance to say that these traffic lights are programmed to allow ease of travel:

<em>The answer is No, because the results are likely to occur by chance.</em>

As the number of green and non-green lights are approximately the same so we can't judge anything regarding the ease to travel.

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Answer:

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5 0
2 years ago
The diagonals of quadrilateral EFGH intersect at D(?3,4). EFGH has vertices at E(3,7) and F(?4,5). What must be the coordinates
Katen [24]

Answer:

  G(3, 1), H(2, 3)

Step-by-step explanation:

When D is the midpoint of EG, it means ...

  D = (E + G)/2

or

  G = 2D -E = 2(3,4) -(3,7) = (2·3-3, 2·4-7) = (3, 1)

Likewise, H is ...

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5 0
3 years ago
5000 people attend 1 movie each in one week. Regular show ticket is $9.50 and matinee tickets are $7. The total amount spent was
yuradex [85]

Answer:

1400

Step-by-step explanation:

Given: Cost of Regular ticket = $9.50

          Cost of Matinee tickets= $7

          Total number of people= 5000

          Total spending in watching movie= $44000.

Lets assume total number of people attended matinee be "x".

∴ Number of people attended Regualr show= (5000-x)

We know, total cost= Price\ of\ each\ ticket \times number\ of\ people

Now, forming an equation to show total spending on tickets.

⇒ \$ 9.50(5000-x)+ \$ 7x= \$ 44000

Using distributive property of multiplication to multiply 9.50 with 5000 and -x.

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Adding both side by 2.5x

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subtracting both side by 44000

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Dividing both side by 2.5

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3 years ago
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