Answer:
134
Step-by-step explanation:
2*(8^2)+4*1.5
64*2
4*1.5=6
128+6=134
Simplify:
<span>2<span>(<span>5x+3</span>)</span></span>−<span>2<span>(<span>2x−3</span><span>)
</span></span></span>
=<span><span>6x</span>+<span>12</span></span>
Answer:
80
Step-by-step explanation:
You mean the "interest on"
I=800×.1×1=80
Answer:
a) probability that the sample will have between 50% and 60% of the identification correct = 0.498
b) The probability is 90% that the sample percentage is contained 45.5% and 54.5% of the population percentage
c) Probability that the sample percentage of correct identifications is greater than 65% = 0.01
Step-by-step explanation:
Sample size, n = 200
Since the brands are equally likely, p = 0.5, q = 0.5
The Standard deviation,
a) probability that the sample will have between 50% and 60% of the identification correct.
Probability that the sample will have between 50% and 60% of the identification correct is 0.498
b) p = 90% = 0.9
Getting the z value using excel:
z = (=NORMSINV(0.9) )
z = 1.281552 = 1.28 ( 2 dp)
Then we can calculate the symmetric limits of the population percentage as follows:
The probability is 90% that the sample percentage is contained 45.5% and 54.5% of the population percentage
c) Probability that the sample percentage of correct identifications is greater than 65%
P(X>0.65) = 1 - P(X<0.65)