Answer:
-1.47
Step-by-step explanation:
5.88/-4= -1.47
Answer:
Where
and
We select a sample of n=16 and we are interested on the distribution of
, since the distribution for X is normal then we can conclude that the distribution for
is also normal and given by:

Because by definition:



And for this case we have this:


Step-by-step explanation:
Previous concepts
Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".
The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".
Solution to the problem
Let X the random variable that represent the IQ scores of a population, and for this case we know the distribution for X is given by:
Where
and
We select a sample of n=16 and we are interested on the distribution of
, since the distribution for X is normal then we can conclude that the distribution for
is also normal and given by:

Because by definition:



And for this case we have this:


Answer:
number of hours = 3 hours
Step-by-step explanation:
Let
x = number of hours
Casa Lucia = 200 + 500x
Silver Fox = 1,100 + 200x
To solve the equation, equate both cost of rent
Casa Lucia = Silver Fox
200 + 500x = 1,100 + 200x
200 - 1,100 = 200x - 500x
-900 = - 300x
x = -900 / -300
x = 3 hours
number of hours = 3 hours
The solution to the system of equations in this real-world context represents the number of hours both locations can be rented with the same cost.
It means both locations cost the same if rented for 3 hours each
Answer:
(2, 4)
Step-by-step explanation:
When plotting points you need to do the x first then the y,
To help you remember the order use the saying OVER AND UP.
For the x-axis is the line going from SIDE to SIDE,
For the y-axis is the line going UP to DOWN,
The Radio City Music Hall x value is 2 and the y value 4.
Therefore your coordinates/ordered pair is (2, 4).
The required table is
x 1 3 5
y 5.79 6.59 7.39
Step-by-step explanation:
We are given the equation y=0.4x+5.39.
We have to put value of x given to find value of y
For x=1, y is:

For x=3, y is:

For x=5, y is:

So, the required table is
x 1 3 5
y 5.79 6.59 7.39
Keywords: Solving Equations
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