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If a parachutist lands at a random point on a line between markers A and B, find the probability that she is closer to A than to B. Find the probability that her distance to A is more than three times her distance to B.
Professor Smith's statistics midterm had a mean of 85 and a standard deviation of 8. If a student got a score of 73, what was the student's standardized (z) score? What is the probability of a normal random variable taking a value more than 1.6 sta..
What is the monetary certainty equivalent for the following gamble: gain $130 with probability 0.4, lose $320 with probability 0.6.
in terms of the mean and standard deviation- what does it mean to say that a particular value of x has a standard score
Consider randomly selecting three bulbs without replacement. Let E denote the event that the first bulb selected is good, F be the event that the second bulb is good, and G represent the event that the third bulb selected is good.
In 36 randomly selected seawater samples, the mean sodium chloride concentration was 23 cubic centimeters per cubic meter and the standard deviation was 6.7 cubic centimeters per cubic meter (cc/cm).
two companies a and b drill wells in a rural area. company a charges a flat fee of 3500 to drill a well regardless of
the acceptable level for insect filth in a certain food item is 3 insect fragments per 10 grams. a sample random of 60
Make a histogram for the r probability distribution.
If the sides of the square are lengthened by 5cm, the area becomes 144cm^2. Find the length of a side of the original square.
We can think of this as the value of mew that maximizes f(y), the probability that our observed value of y occurs.
according to the empirical rule if the data form a bell shaped normal distribution what percent of the observations
In fact, the amount of coverage is known to be approximately normally distributed with a standard deviation of 25 square feet. How large a sample should be taken to estimate the true mean coverage of all 1-gallon cans to within 5 square feet with ..
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