HELP On a test rn Find the sample standard deviation and the population standard deviation of the data set.
68, 56, 43, 60, 70, 75, 72, 45, 54, 51, 59, 45, 47, 82, 46
a.
S = 12.55
S = 12.13
O= 12.13
= 12.55
b.
d.
S = 3.13
S = 3.24
= 3.24
A=3.13

answer: the answer is e

step-by-step explanation:

need more detail

step-by-step explanation:

lele

(1,-1) i hope this

step-by-step explanation:

a

step-by-step explanation:

given the 2 equations

- x + y = - 2 → (1)

2x - 3y = 4 → (2)

multiplying (1) by 2 and adding to (2) will eliminate the x- term

- 2x + 2y = - 4 → (3)

add (2) and (3) term by term

(2x - 2x) + (- 3y + 2y) = (4 - 4), simplifying gives

- y = 0 ⇒ y = 0

substitute y = 0 in either of the 2 equations for corresponding value of x

substituting in (2) gives

2x = 4 ( divide both sides by 2 )

x = 2

solution is (2, 0 ) → a