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erica
[24]
3 years ago
10
Jana has a number cube numbered 1 to 6. She plans to roll the cube 78 times. Predict the number of times Jana will roll a 2.
Mathematics
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1
answer:
aleksklad
[387]
3 years ago
5
0
The probability of rolling a 2 is
for any one roll of the cube.
In 78 rolls, the expected number 2s would be
.
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