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

Question

2 years ago

11

mental probability of rolling a 3 or 4? *
1 point
20%
30%
40%
50%

2 answers:

Maurinko [17] · Answer 1 · 2022-05-08T19:41:29+03:00

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] · Answer 2 · 2022-05-08T21:59:55+03:00

4 0

The correct answer is C, 40%.