1) Choose from the Following: Gaussian Distribution,
Empirical Rule, Standard Normal, Random Variable, Inverse Normal,
Normal Distribution, Approximation, Standardized, Left Skewed, or
Z-Score.
Same as the Normal Distribution
A statement whose reliability is based
upon observation and experimental evidence; formulas based upon
experience rather than mathematical conclusions.
A [_______ ________] is a quantity
resulting from a random experiment that can assume different values
by chance.
A result that is not exact, but is
accurate enough for some specific purposes.
The normal distribution that has a
mean of zero and standard deviation of one is called the
[________ _________]?
[____________________] data always
have a mean of 0 and a standard deviation of 1 regardless of μ and
σ.
The [_______] is also referred to as
the standard normal deviate or just the normal deviate.
Theoretically, the mean, median, and
the mode are all equal for any [____________
____________].
Due to its continuous nature, the
normal function can be inverted so that endpoints of intervals may
be derived from probabilities.
In a [_________________] distribution,
we expect that the median will be greater than the mean.
2) The mean amount of gasoline and
services charged by Key Refining Company credit customers is $70
per month. The distribution of amounts spent is approximately
normal with a standard deviation of $10. What is the
probability of selecting a credit card customer at random and
finding the customer charged between $70 and $83? (Round to
four decimal places).