There is no overall increase or decrease in her bank account.
She spent $9.72 and later deposited the same exact amount.
So the over increase or decrease was $0.
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Answer:
In a discrete probability distribution of a random variable X, the mean is equal to the sum over every possible value weighted by the probability of that value; that is, it is computed by taking the product of each possible value x of X and its probability p(x), and then adding all these products together, giving. .
Step-by-step explanation:
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Answer:
No
Step-by-step explanation:
Definition of a function is: a relation from a set of inputs to a set of possible outputs where each input is related to exactly one output
Here we have more than one output for one input:
- x=-1 => y= -1, 0, 1
- x= 1 => y= 1, 2, 3
So this is not a function
6 because 1 in 1/6 represents how many he took and the denominator in the other fractions gets smaller because it's less and less each time
