Sample size=n=250
sample proportion=p=0.4
95% confidence interval so significance level α=1-0.95=0.05
So, α/2=0.025
z_( α/2)=1.960 (value taken from statistic z-table)
use formula;
p(+/-)z_(α/2)square root(p(1-p)/n)
(0.4-1.960 sq.root(0.4(1-0.4)/250), 0.4+1.960 sq.root(0.4(1-0.4)/250))
(-0.2073,0.4607) (estimation of population proportion)
Quotient means division....answer is C. 42/6 = 7
Answer:
f r e e points?
Step-by-step explanation:
Answer:
c is the hypotenuse
a is the leg opposite
b is the leg adjacent
Step-by-step explanation:
The hypotenuse is the line across the right angle
Since we have angle A, a is the one across, so it is the opposite
B is the adjacent one.
Answer:
15/4.
Step-by-step explanation:
4th term = a1 r^3
= 30(1/2)^3
= 30/8
= 15/4.
