Each person in a random sample of 2000 likely voters (as defined by a professional polling organization) was questioned about his or her political views. Of those
surveyed, 1308 felt that the economy's state was the most urgent national concern.
Reference: Ref 20-1
The standard error SE of p, the estimated proportion viewing the economy's state as
most urgent, is
a) 0.0001.
b) 0.0312.
C) 0.0106.
d) 0.4926.

idek

step-by-step explanation:

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

answer:

125 yards

explanation:

75+50=125. that is my answer