The sum of squared value is the same for population and sample. Variance and standard deviation are different between population and sample due to the difference in the formula.
Answer:
I know what you mean my grandpa is one
Step-by-step explanation:
I explain everything that could happen to him and that could hurt us if he happened to die. His lungs could give out
lung cancer, coronary heart disease or chronic obstructive pulmonary disease (COPD) are some diseases that he could develop
Answer:
100 degrees
Step-by-step explanation:
We can start by finding angle y, which is supplementary to 160.
180-160=20
angle y = 20 degrees.
With that, we can find angle w using the interior-exterior sangle theorem (or whatever name you use for it) which states that "the measure of an exterior angle of a triangle equals the sum of the measures of two remote interior angles". In other words:
angle w = angle y + 80
angle w = 20+80
angle w = 100.
The final answer is 100 degrees.
I hope this helped! :D
Answer: 8 skates
Step-by-step explanation:
Given that:
Skate rental = $3
Let number of skates rented by cotters = x
Hence, amount paid by cotters = 3x
The Moores paid $6 more
Moores amount = 3x + 6
Combined amount paid = 42
3x + 3x + 6 = 42
6x + 6 = 42
6x = 42 - 6
6x = 36
x = 36 / 6
x = 6
Hence, amount spent by the Moore's:
3x + 6
3(6) + 6 = 18 + 6 = $24
Cost per skate rental = $3
Hence x number of skates rented by the Moore's = $24 / 3 = 8 skates
It is a reduction of the original because it became a smaller figure. The scale factor would be less than 1 because it is shrunken I would say the scale factor is 1/2
