Answer:
(a) and
(b) The sample variance is and the sample standard deviation is
Step-by-step explanation:
(a)
The sum of these 17 sample observations is
and the sum of their squares is
(b)
The sample variance, denoted by , is given by
where
Applying the above formula we get that
The sample standard deviation, denoted by <em>s</em>, is the (positive) square root of the variance:
Applying the above formula we get that
Answer:
y=x^2 is the parent function
The transformations for y=-4(x+3)^2-5 are as follows
horizontal shift left 3 units
vertical shift down 5 units
reflection across the x-axis
vertical stretch