Answer:
1. 
2. 
3. 
4. 
5. 
Step-by-step explanation:
The average mortgage owed by Americans is $306,500, with a standard deviation of $24,500.
From the above information, we know that,
The population mean is
The population standard deviation is
Suppose a random sample of 150 Americans is selected
Since the sample size is quite large then according to the central limit theorem, the sample mean is approximately normally distributed.
The sample mean would be the same as the population mean that is
The sample standard deviation is given by
Where 
is the population standard deviation and n is the sample size.
Therefore, the required parameters are:
1.
2.
3.
4.
5.
Card A:
<span>$4,350 x 0.02 = $87
</span><span>$360 - $87 = $273
Card B:
Interest $270 no rebate
so $273 - $270 = $3
Card B cost least and $3 less than card A</span>
Answer:
see explanation
Step-by-step explanation:
A = πr² ← r is the radius and r = 
d ← d is the diameter
Hence
π ( d)² = A, that is
= A ( multiply both sides by 4 )
d²π = 4A ( divide both sides by π )
d² = 
( take the square root of both sides )
d = 
Answer:
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Step-by-step explanation:
The slope of two points is found by
m = (y2-y1)/(x2-x1)
= (1-5)/ (-3 - -3)
= -4/(-3+3)
= -4/0
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Answer:
The answer
Step-by-step explanation:
the width of a rectangular prism which has a height of 10 feet and a length of 14 feet should be 140 square feet
