Answer:
Step-by-step explanation:
Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".
Let X the random variable that represent the Student scores on exams given by a certain instructor, we know that X have the following distribution:

The sampling distribution for the sample mean is given by:
The deduction is explained below we have this:
Since the variance for each individual observation is
then:
And then for this special case:
We are interested on this probability:
And we have already found the probability distribution for the sample mean on part a. So on this case we can use the z score formula given by:
Applying this we have the following result:
And using the normal standard distribution, Excel or a calculator we find this:
Answer:
hi
Step-by-step explanation:
4- 3*1=3
6*1/100= 0.06
3+0.06= 3.06
5- 7*1= 7
3*1/10= 0.3
4*1/1,000= 0.004
7+0.3+0.004= 7.304
7- 3.3, 3.30
8- 9.3000, 9.30
9- 9.6, 9.600
10- 4.4000, 4.40
for #4-5 just put the number of 0s in the denominator of the fraction for the answer
Answer:
The graph of the function rule will be a line segment connecting (0,2) and (40,22) as shown in the graph below.
Step-by-step explanation:
Given:
The function rule representing the total cost of ride and number of miles traveled is:

Now, the maximum value of
is 40.
So, the maximum cost of ride is given as:

So, the graph of the given function rule has a domain between 0 and 40 and range is between 2 and 22.
The graph is shown below.
Answer:
Option B, 14.6 units
Step-by-step explanation:
<u>Step 1: Find the distance of AB</u>
<u />



or 2.83...
<u>Step 2: Find the distance of BC</u>

<u />



or 4.47...
<u>Step 3: Find the perimeter</u>
<em>AB is the same as AD and BC is the same as DC</em>
<em />


14.6 units
Answer: Option B, 14.6 units
Add all the like terms
3b + b = b(3 + 1) = 4b
So, 3b + b + 6 = 4b + 6