Every confidence interval has associated z value. As confidence interval increases so do the z value associated with it.
The confidence interval can be calculated using following formula:

Where

is the mean value, z is the associated z value, s is the standard deviation and n is the number of samples.
We know that standard deviation is simply a square root of variance:

The confidence interval of 95% has associated z value of <span>1.960.
</span>Now we can calculate the confidence interval for our income:
Answer:
374/105.
Step-by-step explanation:
1/3 of 8 * 2/7
= 1/3 * 8 * 2/7
= 8/3 * 2/7
= 16/21.
2/5 of 7
= 2/5 * 7
= 14/5.
Adding 16/21 + 14/5
= 80 / 105 + (14*21) / 105
= 80/105 + 294/105
= 374/105.
<span><u>Answer </u>
=3,075.36 ml
<u>Explanation</u>
We must first convert pounds to kilograms. 1Lbs = 0.453592Kg.
So, 226 Lbs=226×0.453592
=102.512Kg
Now calculate how many ml Mr. Rogers would take.
30ml→1 Kg
What about 102.512 Kg?
102.512Kg→102.512×30
=3,075.36 ml
Since this figure is above the threshold ml per day, then we take the answer as 3,075.36 ml per day.
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Oh this is a great question. For future reference, the formula for this would be called an exponential growth or decay function, here it Is;
Y = a( 1+r )ˣ or Y = a( 1 - r )ˣ
the answer could be found by plugging your numbers into these equations
For example:
Y = 15,250 ( 1 - .075)⁶
A value = starting value of object
R value= decimal equivalent of percent increase or decrease
x value = number of years it has been
Answer : $9552.57