Normal Distribution Examples
Nannie Mack 2021-05-18The college physical education department offered an advanced first aid course last semester. The scores on the comprehensive final exam were normally distributed, and the z scores for some of the students are shown below: Robert, 1.10 Juan, 1.70 Susan, -2.00 Joel, 0.00 Jan, -0.80 Linda, 1.60 If the mean score was μ=150μ=150 with standard deviation σ=20,σ=20, what was the final exam score for each student?
ka1leE 2021-05-18Make a scatterplot for the data in each table. Use the scatter plot to identify and clustering or outliers in the data.
Value of Home Over Time
Number of Years Owned: 0, 3, 6, 9, 12, 15, 18, 21
Value (1,000s of $): 80, 84, 86, 88, 89, 117, 119, 86
Wotzdorfg 2021-05-12Painful bone metastases are common in advanced prostate cancer. Physicians often order treatment with strontium-89 (89Sr), a radionuclide with a strong affinity for bone tissue. A patient is given a sample containing 4 mCi of
If 20% of the
b. what is the biological half-life of
Painful bone metastases are common in advanced prostate cancer. Physicians often order treatment with strontium-89 (89Sr), a radionuclide with a strong affinity for bone tissue. A patient is given a sample containing 4 mCi of
If 20% of the
b. what is the biological half-life of
Rui Baldwin 2021-05-09The table shows the number of students in a schools
Albarellak 2021-05-09The college physical education department offered an advanced first aid course last semester. The scores on the comprehensive final exam were normally distributed, and the z scores for some of the students are shown below:
Robert, 1.10 Juan, 1.70 Susan, -2.00
Joel, 0.00 Jan, -0.80 Linda, 1.60
Which of these students scored above the mean?
Robert, 1.10 Juan, 1.70 Susan, -2.00
Joel, 0.00 Jan, -0.80 Linda, 1.60
Which of these students scored above the mean?
Tyra 2021-05-03Describe in words the surface whose equation is given. (assume that r is not negative.)
a) The plane
b) The plane
c) The plane
d) The plane
e) The plane
a) The plane
b) The plane
c) The plane
d) The plane
e) The plane
emancipezN 2021-05-02
Maurice and Lester are twins who have just graduated from college. They have both been offered jobs where their take-home pay would be $2500 per month. Their parents have given Maurice and Lester two options for a graduation gift. Option 1: If they choose to pursue a graduate degree, their parents will give each of them a gift of $35,000. However, they must pay for their tuition and living expenses out of the gift. Option 2: If they choose to go directly into the workforce, their parents will give each of them a gift of $5000. Maurice decides to go to graduate school for 2 years. He locks in a tuition rate by paying $11,500 for the 2 years in advance, and he figures that his monthly expenses will be $1000. Lester decides to go straight into the workforce. Lester finds that after paying his rent, utilities, and other living expenses, he will be able to save $200 per month. Their parents deposit the appropriate amount of money in a money market account for each twin. The money market accounts are currently paying a nominal interest rate of 3 percent, compounded monthly. At the end of 2 years, Lester receives a raise and decides to save $250 each month. Maurice receives a $5000 graduation gift from his parents and deposits this amount into his money market account. Maurice goes to work and saves $500 each month. Complete the equations below for the money market account balance for each twin. Let the initial balance u0 be the account balance at the end of 2 years. Write an expression for this month's account balance un in terms of un−1. Recall that the interest rate for the account is 3 percent, compounded monthly. Maurice:
Maurice and Lester are twins who have just graduated from college. They have both been offered jobs where their take-home pay would be $2500 per month. Their parents have given Maurice and Lester two options for a graduation gift. Option 1: If they choose to pursue a graduate degree, their parents will give each of them a gift of $35,000. However, they must pay for their tuition and living expenses out of the gift. Option 2: If they choose to go directly into the workforce, their parents will give each of them a gift of $5000. Maurice decides to go to graduate school for 2 years. He locks in a tuition rate by paying $11,500 for the 2 years in advance, and he figures that his monthly expenses will be $1000. Lester decides to go straight into the workforce. Lester finds that after paying his rent, utilities, and other living expenses, he will be able to save $200 per month. Their parents deposit the appropriate amount of money in a money market account for each twin. The money market accounts are currently paying a nominal interest rate of 3 percent, compounded monthly. At the end of 2 years, Lester receives a raise and decides to save $250 each month. Maurice receives a $5000 graduation gift from his parents and deposits this amount into his money market account. Maurice goes to work and saves $500 each month. Complete the equations below for the money market account balance for each twin. Let the initial balance u0 be the account balance at the end of 2 years. Write an expression for this month's account balance un in terms of un−1. Recall that the interest rate for the account is 3 percent, compounded monthly. Maurice:
Kaycee Roche 2021-03-11Consider two independent populations that are normally distributions. A simple random sample of
Suppose
margin of error-?
lower limit-?
upper limit-?
Suppose
margin of error-?
lower limit-?
upper limit-?
allhvasstH 2021-03-08Explain some of the important characteristics of a normal distribution.
texelaare 2021-03-06A normal distribution has
(c)Find the raw score corresponding to
(c)Find the raw score corresponding to
Annette Arroyo 2021-03-04Consider the marks of all 1st-year students on a statistics test. If the marks have a normal distribution with a mean of 72 and a standard deviation of 9, then the probability that a random sample of 10 students from this group have a sample mean between 71 and 73 is?
ddaeeric 2021-03-02
Obtain the appropriate point estimator
Obtain the appropriate point estimator
Globokim8 2021-02-27True or False: only the sums of normal distributions are also normal distributions.
zi2lalZ 2021-02-26Consider two normal distributions, one with mean-4 and standard deviation 3, and the other with mean 6 and standard deviation 3. Answer true or false to each statement and explain your answers.
a. The two normal distributions have the same spread.
b. The two normal distributions are centered at the same place.
a. The two normal distributions have the same spread.
b. The two normal distributions are centered at the same place.
Globokim8 2021-02-25Explain why t distributions tend to be flatter and more spread out than the normal distribution.
Chardonnay Felix 2021-02-25Basic Computation:
(b) Suppose
(b) Suppose
Jaya Legge 2021-02-22The normal distribution is really a family of distributions. Is the standard normal distribution also a family of distributions?Explain.
allhvasstH 2021-02-22Why do two normal distributions that have equal standard deviations have the same shape?
Cem Hayes 2021-02-21Find the mean of standard normal distribution.
Find the standard deviation of standard normal distribution.
Find the standard deviation of standard normal distribution.
ankarskogC 2021-02-16Basic Computation: hat p Distribution Suppose we have a binomial experiment in which success is defined to be a particular quality or attribute that interests us.
(b) Suppose
Basic Computation: hat p Distribution Suppose we have a binomial experiment in which success is defined to be a particular quality or attribute that interests us.
(b) Suppose
