16x-32=48 /+32
16x=80/:16
X=5
Answer:
A sample of 997 is needed.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of
, and a confidence level of
, we have the following confidence interval of proportions.
In which
z is the z-score that has a p-value of
.
The margin of error is of:

A previous study indicates that the proportion of left-handed golfers is 8%.
This means that 
98% confidence level
So
, z is the value of Z that has a p-value of
, so
.
How large a sample is needed in order to be 98% confident that the sample proportion will not differ from the true proportion by more than 2%?
This is n for which M = 0.02. So






Rounding up:
A sample of 997 is needed.
Answer:

Step-by-step explanation:
Here is a problem with the concept of properties of the exponent.
We are given
and we have to find the value of 5x.
Now,
{Since we are given that
}
⇒
{Since we can write
}
⇒
{Since we know the formula of exponent as
}
(Answer)
To the nearest whole: 4
to the nearest hundredth: 4.2
actual answer: 4.5
Answer:
you could divide
Step-by-step explanation: