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I think I have the first question answered, but I dont understand
I think I have the first question answered, but I don't understand the second question. Here are the questions: A recent study of the life span of portable compact disc players found the average to be… read more
Osbert12
Master's Degree
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1.Express the indicated degree of likelihood as a probability
1.Express the indicated degree of likelihood as a probability value. "It will definitely turn dark tonight." 0.67 0.5 0.30 1 2. Answer the question. What is the probability of an event that is certain… read more
Osbert12
Master's Degree
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1. An investment project is expected to earn \$100,000 on average
1. An investment project is expected to earn \$100,000 on average with a standard deviation of \$50,000. Assume earnings from this investment project is a normal distribution. Determine the probability … read more
Chirag
Master's Degree
10,329 satisfied customers
A manufacturer knows that their items have a normally distributed
A manufacturer knows that their items have a normally distributed lifespan, with a mean of 9.8 years, and standard deviation of 3.2 years. If you randomly purchase one item, what is the probability it… read more
Matt
Master's Degree
335 satisfied customers
A manufacturer knows that their items have a normally distributed
A manufacturer knows that their items have a normally distributed lifespan, with a mean of 10.3 years, and standard deviation of 0.8 years. The lowest 10% of items will last less than how many years? … read more
Chirag
Master's Degree
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Chirag, Can you help me with these questions ASAP I dont
Chirag, Can you help me with these questions ASAP? I don't need to see how you arrive at the solution. In its standardized form, the normal distribution Question 1 options: 1) has a mean of 0 and a st… read more
Chirag
Master's Degree
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4, short question quiz for statistics class. Bonus will be
4, short question quiz for statistics class. Bonus will be added. 1. The scores on a mathematics exam have a mean of 65 and a standard deviation of 5. Find the x-value that corresponds to the z-score … read more
Osbert12
Master's Degree
2,468 satisfied customers
Twenty five percent of the employees of a large hospital are
Twenty-five percent of the employees of a large hospital are minorities. A random sample of 7 employees is selected. A. What is the probability that the sample contains exactly 4 minorities? ____ B. W… read more
Chirag
Master's Degree
10,329 satisfied customers
Hello again. I am needing some more help on these. No math
Hello again. I am needing some more help on these. No math workup, just the answers, thanks. According to a media research company, 58.3% of the 222,900 households in the county get the Sunday edition… read more
Stevewh
Teacher
Bachelor's Degree
6,427 satisfied customers
HELLO SCOTT!!! I need help on some math questions please!!!!
HELLO SCOTT!!! I need help on some math questions please!!!! #1)The diameters of ball bearings produced in a manufacturing process can be described using a uniform distribution over the interval 2.5 t… read more
Scott
Master's Degree
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the waiting time at a certain bank is approximately normally
the waiting time at a certain bank is approximately normally distributed with a mean of 3.7 min and a standard deviation of 1.4 min. A.)find the probability that a randomly selected customer has to wa… read more
SusanAthena
Master's Degree
Master's Degree
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1. A population has a mean of 84, a standard deviation of 16.
1. A population has a mean of 84, a standard deviation of 16. Find the mean and the standard deviation of a sampling distribution of sample means with sample size n=64. 2. the population mean and stan… read more
Stevewh
Teacher
Bachelor's Degree
6,427 satisfied customers
The average score on an english exam was 63 and the standard
The average score on an english exam was 63 and the standard deviation was 12. The marks were normally distributed and the students z-score was 1.7, then what was the student's actual mark? Need help … read more
John
Bachelor's Degree
26 satisfied customers
1. Use the Standard Normal Distribution table to find the
1. Use the Standard Normal Distribution table to find the indicated area under the standard normal curve. a. Between z = 0 and z = 2.36 b. To the left of z = -1.68 c. Between z = 0.64 and z = 1.52 d. … read more
Scott
Master's Degree
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17. Describe the correlation in this graph. http //img.villagephotos.com/imageview
17. Describe the correlation in this graph. http://img.villagephotos.com/imageview.aspx?i=25988201 moderate positive strong negative moderate negative weak positive 18. A restaurant claims that its sp… read more
R.R. Jha
Bachelor's Degree
5,905 satisfied customers
1. The time at which the mailman delivers the mail follows
1. The time at which the mailman delivers the mail follows a normal distribution with a mean of 2:00PM and a standard deviation of 15 minutes. What is the probability that the mail will arrive after 2… read more
Scott
Master's Degree
16,043 satisfied customers
1.) An office uses two brands of fluorescent light bulbs in
1.) An office uses two brands of fluorescent light bulbs in its overhead light fixtures. From past experience, it is known that Brand A bulbs have a mean life length of 3000 hours and a standard devia… read more
muvee
Master's Degree
1,030 satisfied customers
Hi, Please any help will be appreciated. Use the normal
Hi, Please any help will be appreciated. Use the normal distribution od SAT critical reading scores for which the mean is 508 and the standard deviation is 120. Assume the variable x is normally distr… read more
Stevewh
Teacher
Bachelor's Degree
6,427 satisfied customers
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