+2x6 + 4x5 + x4 + 11x3 + 2x2 + 4x + 4
Answer:
account balance will be $12113.9 and the interest is $2113.9.
Answer:
the probability that five randomly selected students will have a mean score that is greater than the mean achieved by the students = 0.0096
Step-by-step explanation:
From the five randomly selected students ; 160, 175, 163, 149, 153
mean average of the students = 160+175+163+149+153/5
= mean = x-bar = 800/5
mean x-bar = 160
from probability distribution, P(x-bar > 160) = P[ x-bar - miu / SD > 160 -150.8 /3.94]
P( Z>2.34) = from normal Z-distribution table
= 0.0096419
= 0.0096
hence the probability that five randomly selected students will have a mean score that is greater than the mean achieved by the students = 0.0096
where SD = standard deviation = 3.94 and Miu = 150.8
Answer:
4%
Step-by-step explanation:
Divide the tax by the pre-tax price =
12.80/320 = .04 or 4%
22+24+26+28+30+32+34+36+38+40+42+44= 396
