Melissa is buying a sweater the average the cost of the sweater is $18 the sweater is 15% off and sale tax 8% How much where is
1 answer:
You might be interested in
Answer:
b > 12.71
Step-by-step explanation:
Here in this question we have to solve the inequality equation given for b (An unknown variable}
Now, the equation is
⇒
We are taking the base of the log here is 10.
So, {Since
and
}
⇒ b > 12.71 (Approximate) (Answer)
Let 
be the random variable for the weight of any given can, and let 
and 
be the mean and standard deviation, respectively, for the distribution of .
You have
Recall that for any normal distribution, approximately 99.7% of it lies within three standard deviations of the mean, i.e.
. This means 0.3% must lie outside this range, 
. Because the distribution is symmetric, it follows that 
.
Also recall that for any normal distribution, about 95% of it falls within two standard deviations of the mean, so
, which means 5% falls outside, and by symmetry, 
.
Together this means
Solving for the mean and standard deviation gives
and 
.
You have
Recall that for any normal distribution, approximately 99.7% of it lies within three standard deviations of the mean, i.e.
Also recall that for any normal distribution, about 95% of it falls within two standard deviations of the mean, so
Together this means
Solving for the mean and standard deviation gives