A bag contains only red, green, brown and yellow marbles. The probabilities of selecting each colour are shown below.
The probability of choosing a red marble is the same as choosing a yellow
marble.
2
Colour
Red
Green
Brown
Yellow
Jackson
Probability
0.8
0.02
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Law
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ABC
Check
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larren
7
8
9
4
5
6

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54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m