The following is the cell phone usage for the month of November in the Adams family....
The following is the cell phone usage for the month of November in the Adams family.
| Father | Mother | Daughter | Son | |
| price per minute in dollars | .40 | 1.30 | 1.10 | .29 |
| probability of that person using the phone | .6 | .3 | .2 | .2 |
This table represents an accurate probability distribution
Homework Answers
Answer
No, this table does not represents an accurate probability distribution because we know that the maximum value of probability in a distribution is sum of all individual probability, which must be equal to 1.
In this case, the total probability is greater than 1
P(father)+P(mother)+P(daughter)+P(son) = 0.6+0.3+0.2+0.2 = 1.3
So, it is clear that 1.3 is greater than 1, which makes the inaccurate probability distribution for the given data in the table.
So, we can say that this table does not represents an accurate probability distribution.
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The following is the cell phone usage for the month of November
in the Adams family....
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month. Under this plan, you can make an unlimited number of phone
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(a) Prepare a table that shows the cost per minute
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minutes. (Round unit costs to 2 decimal places, e.g.
52.75.)
Minutes
Cost per
minute...
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