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The following data represents a random sample of number of shares of a pharmaceutical company's stock traded for 20 days in 2000. 3.99 8.91 10.41 7.53 13.85 5.3 9.7 8.95 12.11 13.26 4.25 8.55 11.6 6.76 27.55 7.72 10.15 4.29 7.25 10.89 A) normally distributed B) not normally distributed.
The number of lightning strikes in a year at the top of a particular mountain has a Poisson distribution with a mean of 4.2. Find the probability that in a randomly selected year, the number of lightning strikes is 0.
1. the maker of a shampoo knows that customers like this product to have a lot of foam. ten sample bottles of the
suppose duration of human pregnancies are somewhat skewed with mean 263 days and standard deviation of 19 days.
suppose a point xy is chosen at random from the disk x2 y2 is less than and equal to 1. find the a marginal density of
identify the sample space of the probability experiment and determine the number of outcomes in the event. draw a tree
A catering company is buying equipment in order to set up their own store. They have a choice of two ovens that they can purchase for the store.
a water treatment plant needs to maintain the ph of the water in the reservoir at a certain level. to monitor this they
What is the probability that a sample of this size will have an average amount spent that is between $260 and $270?
why the rise in performance on IQ tests contrasts with a steady decline in performance over the past decades on many standardized tests,
the head of the english department wants to determine if the average number of students taking an english course
Comparing the lifetimes of two brands of penlight batteries, a researcher has randomly selected 10 batteries of brand A and 10 of brand B, then subjected each battery to the same usage test. Given the lifetimes listed below and using the 0.05 lev..
Marital Status. The probability that a randomly chosen 40-year-old woman is divorced is about 0.15. this probability is a long-run proportion based on all the millions of women aged 40.
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