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A bag contains 4 red, 4 blue, 4 green, and 4

yellow marbles. A marble is randomly pulled from
the bag and replaced seven times. The table shows
the outcome of the experiment.

TRIAL - OUTCOME
1 - YELLOW
2 - BLUE
3 - YELLOW
4 - RED
5 - BLUE
6 - YELLOW
7 - YELLOW

Which marble color’s observed frequency is closest
to its expected frequency

1. Red
2 Blue
3 Green
4 Yellow

5 answers

Yellow

Blue

yellow

Blue
Sol.
Expected= 4/16 or 1/4 chances of picking any one color.
Observed Blue 2/7 closest to Expected

Blue

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