Mathematics, 27.01.2020 22:31 MaeWolfe
Mercury is a persistent and dispersive environmental contaminant found in many ecosystems around the world. when released as an industrial by-product, it often finds its way into aquatic systems where it can have deleterious effects on various avian and aquatic species. the accompanying data on blood mercury concentration (µg/g) for adult females near contaminated rivers in a state was read from a graph in an article. 0.20 0.22 0.26 0.30 0.35 0.42 0.54 0.57 1.42 1.71 1.83 2.21 2.26 3.08 3.24 (a) determine the values of the sample mean and sample median. hint: xi = 18.61. (round your answers to three decimal places.) x = = explain why they are different. there is heavy negative skewness in the data. there is heavy positive skewness in the data. the sample mean and sample median are never equal. there are an odd number of data values. they aren't different since the data is symmetric. (b) determine the value of the 10% trimmed mean. (round your answer to three decimal places.) compare to the mean and median. it is the same as the mean. it is between the values of the mean and median. it is the same as the median. it is below both the mean and median. it is above both the mean and the median.
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Mathematics, 21.06.2019 17:30
Two customers went to a post office. first customer paid $12 for 14 and 5 envelopes the second paid 24.80 for 10 postcards and 15 envelopes. what is cost of each envelope?
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Mathematics, 21.06.2019 17:30
Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?
Answers: 1
Mathematics, 22.06.2019 04:30
The function c(n) below relates the number of bushels of apples picked at a pick-your-own orchard to the final cost for the apples. it takes as input the number of bushels of apples picked after paying an entry fee to an orchard and returns as output and returns as output the cost of the apples (in dollars)c(n) = 15n + 30which equation below represents the inverse function n(c), which takes the cost of the apples as input and returns the number of bushels picked as output
Answers: 1
Mathematics, 22.06.2019 04:30
Jocelyn estimates that a piece of wood measures 5.5 cm. if it actually measures 5.62 cm, what is the percent error of jocelyn’s estimate? a. 2.13% b. 2.18% c. 12% d. 46.83%
Answers: 2
Mercury is a persistent and dispersive environmental contaminant found in many ecosystems around the...
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