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never [62]
3 years ago
11

David rolls a number cube fifty times. The number 4 comes up twelve times. The number 3 comes up eight times. What is the experi

mental probability of rolling a 3 or 4? *
1 point
20%
30%
40%
50%
Mathematics
2 answers:
Maurinko [17]3 years ago
5 0

Answer:

40%.

Step-by-step explanation:

Prob( Rolling a 4) = 12/50

Prob( Rolling a 3) = 8/50

When the combined probabilities contain  an 'OR' we Add the probability values:

Probability of a 3 or a 4  

= 12/50 + 8/50

= 20/50

= 2/5

= 40%.

kondaur [170]3 years ago
4 0

The correct answer is C, 40%.

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