If a bag contains 100 red cubes, 50 blue cubes, 25 yellow cubes and 25 green cubes, what is the
probability of Alicia choosing a blue cube?
a. 1 out of 50
b) 50 out of 100
c. 1 out of 2
d) 25%
Answers
Answer:
d) 25%
Step-by-step explanation:
Total blue cubes in bag = 50
Total cubes in bag = 200
Probability= 50/200 = 1/4
1/4 × 100 = 25%
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Answer:
d) 25%
Step-by-step explanation:
Number of red cubes = 100
Number of blue cubes = 50
Number of yellow cubes = 25
Number of green cubes = 25
Total no. of cubes = no. of red cubes + no. of blue cubes + no. of yellow
cubes + no. of green cubes
= 100 + 50 + 25 + 25
= 200
Favourable event = choosing a blue cube
Number of favourable outcome, n (F) = no. of blue cubes
= 50
Total no. of outcomes, n (T) = Total no. of cubes
= 200
Probability = Number of favourable outcome / Total no. of outcomes
= n (F) / n (T)
= 50 / 200
= 1 / 4
Probability in percentage = 1 / 4 × 100 %
= 25 %