Math Homework

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8. The life span of a battery is normally distributed, with
8. The life span of a battery is normally distributed, with a mean of 2300 hours and a standard deviation of 50 hours. What percent of batteries have a life span that is more than 2365 hours? What per… read more
Ryan
Bachelor's Degree
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If the random variable z is the standard normal score and P(z
If the random variable z is the standard normal score and P(z < a) = 0.5, then a = 3. Why or why not?… read more
Ashok Kumar
Master's Degree
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(1) Find the value of Z such that approximately 9.48% of the
(1) Find the value of Z such that approximately 9.48% of the distribution lide between it and the mean (2)X has a normal distribution with a mean of 80.0 and a standard deviation of 4.0 fine the follo… read more
Ryan
Bachelor's Degree
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susan athena find the area under the standard normal curve A
susan athena find the area under the standard normal curve A P(z>1.87) B P(0… read more
SusanAthena
Master's Degree
Master's Degree
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a.) find the binomial probability P(x 5), where n 15 and
a.) find the binomial probability P(x = 5), where n = 15 and p = 0.50 b.) set, without solving, the binomial probability P(x is at most 5) using probability notation. c.) hoe would you find the normal… read more
Ryan
Bachelor's Degree
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At one site on hte mesa, tree-ring dates give a mean date of
At one site on hte mesa, tree-ring dates give a mean date of 1272 with a standard deviation of 35 years. At a second site, the tree ring dates gave a mean of 1122 with a standard deviation of 40 years… read more
Osbert12
Master's Degree
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X has a normal distribution with a mean of 80.0 and a standard
X has a normal distribution with a mean of 80.0 and a standard deviation of 4.0. Find the following pobabilities: (a) P (x < 78.0) (b) P (75.0 < X 82.0)… read more
Sandhya_sharma
Master's Degree
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I need help with the following questions, and need the answers
I need help with the following questions, and need the answers by Monday evening please. 1. Given the complex numbers z1=3+j, z2=1-2j, z3=4j, simplify the following complex numbers into yhe form a+jb … read more
Ashok Kumar
Master's Degree
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I have a curve with an x1,y1,z1 starting point, as well as
I have a curve with an x1,y1,z1 starting point, as well as a known zenith (lets say 0°, vertical) and azimuth (lets say 180°, due south) at that point. I also have a known rate of change for every 100… read more
Martin
Master's Degree
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given the curve k(t) cost,sint,csint for 0 t 2pi, where
given the curve k(t)= for 0<=t<=2pi, where c is a real number. Find the equation of the plane P in which the curve lies and the angle between the plane and the xy-plane. Prove that the curve is … read more
David
Post-Doctoral Degree
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1. The new director of special programs in XYZ Corporation
1. The new director of special programs in XYZ Corporation felt the customers were waiting too long to receive and complete forms needed to enroll in special programs. After collecting some data, Ms. … read more
Ryan
Bachelor's Degree
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The average grade point average (GPA) of undergraduate students in New York is normally distributed with a population mean of 2.5 and a population standard deviation of .5. Compute the following, show… read more
Chirag
Master's Degree
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Suppose we have a population of scores with a mean ( ) of 975
Suppose we have a population of scores with a mean (µ) of 975 and a standard deviation (s) of 15. Assume that the distribution is normal. Provide answers to the following questions: What percentage of… read more
Paul R.
Staff Scientist
Master's Degree
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Given a normal distribution with m 100 and standard deviation
Given a normal distribution with m=100 and standard deviation =10, if you select a sample of n=25, what is the probability that the sample mean is a. less than 95, b. between 95 and 97.5, c. above 102… read more
abozer
Bachelor's Degree
6,158 satisfied customers
34. Miles per Gallon. Elena conducts an experiment in which
34. Miles per Gallon. Elena conducts an experiment in which she fills up the gas tank on her Toyota Camry 40 times and records the miles per gallon for each fill up. A histogram of the miles per gallo… read more
Scott
Master's Degree
16,043 satisfied customers
#4.4 Can you determine whether the area under the standard
#4.4 Can you determine whether the area under the standard normal curve between z=0.5 and z=1.0 is greater than or less than the area between z=1.5 an z=2.0 Explain. #4.6 (a) What is the linear correl… read more
Scott
Master's Degree
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You answered a math question that I have a further question
You answered a math question that I have a further question regarding. The original question was: For a particular sample of 50 scores o a psychology exam, the following results were obtained: Mean = … read more
Chirag
Master's Degree
10,329 satisfied customers
If we know that the length of time it takes a college student
If we know that the length of time it takes a college student to find a parking spot in the library parking lot follows a normal distribution with a mean of 3.5 minutes and a standard deviation of 1 m… read more
SusanAthena
Master's Degree
Master's Degree
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