To find the unit price we need to all price divide by number of gallons, so
Answer: The unit price is $3.54
3.124 * 10^-4
since your decimal is coming forward you need the exponent to be negative
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.
The answer is ten if I'm correct
Answer:
x=3
Step-by-step explanation:
Do you mean 9(3)^x=243? Then the solution is:
9(3)^x=243
(3)^x=27
log₃((3)^x)=log₃(27)
x=3
Therefore, x=3