Expert answer:26 basic questions on value of graphts sample valu

Expert answer:Please view the table at the end of the attached. Please see
attached 26 questions. The questions are about graphs and the value of the graph.
The are also question about a value of a sample. For example X=?. There are
also tables at the end of the attachment with a tables. Which are needed to
address questions. The attached text is in at the attachment as it was not
possible to copy and past the information in to the main body part. Please can
you have provided the answer next to each of the questions. To make it clear
please can you highlight the text r written in a different color other than black
to make the text stick out
math_week_5.docx

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Please view the table at the end of the attached. Please see attached 26 questions. The questions are
about graphs and the value of the graph. The are also question about a value of a sample. For example
X=?. There are also tables at the end of the attachment with a tables. Which are needed to address
questions. The attached text is in at the attachment as it was not possible to copy and past the
information in to the main body part. Please can you have provided the answer next to each of the
questions. To make it clear please can you highlight the text r written in a different color other than black
to make the text stick out
Please address each question. Also, please note there are tables at the end of the text, these are to be
used in relevant questions. Please review the tables before starting the questions. Thank you
1. Determine whether the graph to the right can represent a variable with a normal distribution.
Explain your reasoning. If the graph appears to represent a normaldistribution, estimate the mean
and standard deviation.
A.
No, because the graph
is skewedis skewed
rightright.
B.
Yes, the graph fulfills the properties of the normal distribution. The mean is approximately
nothing
and the standard deviation is about
nothing .
(Round to two decimal places as needed.)
C.
No, because the graph
is skewedis skewed
leftleft.
D.
No, because the graph
crosses the x-axis.
2.Determine whether the following graph can represent a variable with a normal distribution. Explain your
reasoning. If the graph appears to represent a normaldistribution, estimate the mean and standard
deviation.
Could the graph represent a variable with a normal distribution? Explain your reasoning. Select the
correct choice below and, if necessary, fill in the answer boxes within your choice.
A.
No, because the graph is skewed left.
B.
No, because the graph crosses the x-axis.
C.
Yes, the graph fulfills the properties of the normal distribution. The mean is approximately
nothing
and the standard deviation is about
nothing .
(Type whole numbers.)
D.
No, because the graph is skewed right.
3.Find the area of the shaded region under the standard normal curve.
z equals 1.85
The area of the shaded region i
4. Find the indicated area under the standard normal curve.
To the left of z =1.37
The area to the left of Z =1.371.37
under the standard normal curve is
nothing .
5. Find the indicated area under the standard normal curve.
To the right of z =1.97
The area to the right of Z =1.971.97
under the standard normal curve is
s
nothing .
6. Find the indicated area under the standard normal curve.
Between Z =negative 1.57−1.57 and z =1.57
7. For the standard normal distribution shown on the right, find the probability of z occurring in the
indicated region 0.91
The probability is
nothing .
8. For the standard normal distribution shown on the right, find the probability of z occurring in the
indicated region. -0.81
The probability is
nothing
9. Find the indicated probability using the standard normal distribution.
P(z<0.86) P(z<0.86)= nothing 10. Find the indicated probability using the standard normal distribution. P(z>1.41)
P(z>1.41 )=
nothing
11. Find the indicated probability using the standard normal distribution.
P(-0.77
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