Answer:
i really think the answer will be 3.
Answer:
$1.94.
Step-by-step explanation:
Initial box of figurine = 32
Price increase = 2.32
Current worth = $144.24
Let x be the initial cost of boxes of figurine.
(32 * x) * 2.32 = $144.24.
74.24x = $144.24.
x = $144.24/74.24
= $1.94.
Therefore the original cost of the box of figurine is $1.94.
Answer:
20
Step-by-step explanation:
1800/90 = 20
Answer:
The degrees of freedom are:
The confidence level is 0.95 or 95%, the significance would be and , the critical value for this case would be
And replacing we got:
Step-by-step explanation:
Information given
In order to calculate the mean and the sample deviation we can use the following formulas:
(2)
(3)
represent the sample mean
population mean
s=9.956 represent the sample standard deviation
n=10 represent the sample size
Confidence interval
The confidence interval for the mean is given by the following formula:
(1)
The degrees of freedom are:
The confidence level is 0.95 or 95%, the significance would be and , the critical value for this case would be
And replacing we got: