Answer:
C) 8
Step-by-step explanation:
A ÷ 2 = 4
Get the 2 and 4 on the same side of the equal sign
A = 2 * 4
Multiply
A = 8
:)
Answer:
€98.
Step-by-step explanation:
A 30% deposit is 0.30 * 840
= €252.
So there is 840 - 252
= €588 left to pay.
The amount of each monthly instalment
= 588 / 6
= €98.
Answer:
Step-by-step explanation:
The slope intercept form equation of a straight line is expressed as
y = mx + c
Where
m represents slope
c represents y intercept.
Comparing the given equations with the slope intercept form equation,
2) y = 4x + 14 is in the slope intercept form. Its slope is 4 and the intercept is 14.
3) y = -4x + 14 is in the slope intercept form. Its slope is - 4 and the intercept is 14.
4) y = 2x + 7 is in the slope intercept form. Its slope is 2 and the intercept is 7.
5) y = -2x + 7 is in the slope intercept form. Its slope is - 2 and the intercept is 7.
Answer:


![Interval = [666.78, 781.62]](https://tex.z-dn.net/?f=Interval%20%3D%20%5B666.78%2C%20781.62%5D)
Step-by-step explanation:
Given
The data for 25 undergraduates
Solving (a): Range and Standard deviation
The range is:

From the dataset:


So:



The standard deviation is:

First, calculate the mean



So, the standard deviation is:




Solving (b): The interval of the 95% of the observation.
Using the emperical rule, we have:
![Interval = [\bar x - 2*\sigma, \bar x+ 2*\sigma]](https://tex.z-dn.net/?f=Interval%20%3D%20%5B%5Cbar%20x%20-%202%2A%5Csigma%2C%20%5Cbar%20x%2B%202%2A%5Csigma%5D)
![Interval = [724.2 - 2*28.71, 724.2 + 2*28.71]](https://tex.z-dn.net/?f=Interval%20%3D%20%5B724.2%20-%202%2A28.71%2C%20724.2%20%2B%202%2A28.71%5D)
![Interval = [666.78, 781.62]](https://tex.z-dn.net/?f=Interval%20%3D%20%5B666.78%2C%20781.62%5D)
No because it has to pass the origin of (0,0) but it is 2 units above the origin (0,2) so it will never cross it proportionally.