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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
Osbert12
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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
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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
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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
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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
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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
Chirag
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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
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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
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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
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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
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the waiting time at a certain bank is approximately normally
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1. A population has a mean of 84, a standard deviation of 16.
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The average score on an english exam was 63 and the standard
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1. Use the Standard Normal Distribution table to find the
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17. Describe the correlation in this graph. http //img.villagephotos.com/imageview
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1. The time at which the mailman delivers the mail follows
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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
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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
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