Answer:
Option D 2.6% is right.
Step-by-step explanation:
Given that at a certain grocery store 65% of the customers regularly use coupons.
Proportion of the customers regularly use coupons.=0.65
Proportion of customers who do not regularly use coupons.
=1-0.65 = 0.35
Sample size = 340
In usual notation we write this as
[tex]p=0.65\\q=0.35\\n = 340[/tex]
Std deviation = [tex]\sqrt{\frac{pq}{n} } \\=\sqrt{\frac{0.65*0.35}{340} } \\=0.025867[/tex]
In percentage this can be written as 2.5867% ~2.6%
Option D 2.6% is right.
Answer:
D
Step-by-step explanation:
BECAUSE
WHEN
YOU
LOOK
AT
A
B
OR
C
OH
NO
THERE
IS
NO
MORE
SPACE
!!!!!!!!!!!!!!
