Mathematics, 26.03.2020 07:18 hinokayleen5053
Two causes of poor power quality are “sags” and “swells.” A SAG is an unusual dip and a swell is an unusual increase in the voltage level of a transformer. For transformers built for heavy industry, the main number of swirls per week was 184 with a standard deviation of 28.4 swirls per week. The main number of sags her week was 326 With a standard deviation of 33 sacks per week. Assume that both the number of sags and the number of swirls are normally distributed. Suppose one of the Transformers is randomly selected and found to have 420 sags in 70 sags in a week.
a. What is the probability that the number of sex per week is less than 420?
b. What is the probability that the number of swirls per week is greater than 70?
Answers: 2
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Someone answer this asap for gabriella uses the current exchange rate to write the function, h(x), where x is the number of u.s. dollars and h(x) is the number of euros, the european union currency. she checks the rate and finds that h(100) = 7.5. which statement best describes what h(100) = 75 signifies? a. gabriella averages 7.5 u.s. dollars for every 100 euros. b. gabriella averages 100 u.s. dollars for every 25 euros. c. gabriella can exchange 75 u.s. dollars for 100 euros. d. gabriella can exchange 100 u.s. dollars for 75 euros.
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Two causes of poor power quality are “sags” and “swells.” A SAG is an unusual dip and a swell is an...
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