Find slope of both lines and determine if parallel, perpendicular or neither
1 answer:
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Answer:
Step 2 is wrong
Step-by-step explanation:
=
= 1/16
Answer:
The standard deviation of the number of haunted houses in a large city is 3.
Step-by-step explanation:
In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:
In which
x is the number of sucesses
e = 2.71828 is the Euler number
is the mean in the given interval, which is the same as the variance.
According to ghost hunters, large cities have, on average, 9 haunted houses each.
This means that
a) What is the standard deviation of the number of haunted houses in a large city?
Square root of the variance, so:
The standard deviation of the number of haunted houses in a large city is 3.