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Q: 8. If sugar costs $2.87 for 80 ounces, what is the cost per ounce, rounded to the nearest cent?
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Q: 923 is what percentage of 1816 ? work the problem
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Q: 7) L{as° +! 4s 2 ( 4s² 2s – 6 8) L* 2 s* +9 1 9) L¯ 2 s´+3s
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Q: Is 12 O er 12 bigger or smaller than 10 over 1
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Q: 7. On three examinations, Ivana received 90.5, 87.2, 80.7. What score does Ivana need in the fourth…
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- 1. NCAE shows that the average score of the students is 80 and sd is 15. What is the percentile rank of a score of 84?In 1998 El Salvador had a gini index of 54.50 and 26 years later had a gini index of 38. What does this tell us about the distribution of income throughout El Salvador?Suppose a population of devices has a Weibull life distribution with β= 1.6 and θ= 25. What is the mean of the residual life distribution for copies of the device that survive 15 hours?
- By what percentage is salary predicted to increase if ros increases by 50 points? Does ros have a practically large effect on salary?Suppose that 25% of patients with MI in 2000 died within24 hours. This proportion is called the 24-hour case-fatalityrate. 7.14 Of the 15 new MI cases in the preceding study,5 died within 24 hours. Test whether the 24-hour casefatality rate changed from 2000 to 2010How standard normal cumulative distribution function is used by Probit regression?
- The random variable X is exponentially distributed, where X represents the waiting time to see a shooting star during a meteor shower. If X has an average value of 53 seconds, what are the parameters of the exponential distribution?Step 2: Determine if r is statistically significant at 0.01 and 0.05 levels.In general,_____% of the values in a data set lie at or below the 94th percential. _______% of the values in a data set lie at or above the 90th percentile... if a sample consists of 800 test scores,___ of them would be at or below 40th percential, if a sample consists of 800 test scores,____ of then would be at or above the 58th percentile.
- A population with a mean of μ = 8 has SX = 40.How many scores are in the population?Imagine a family member looks over your shoulder as you look at the variance equation Σki=1(xi − μ)2P(X = xi) and asks why the P(X = xi) term is there. What would you say?Suppose that the length of long distance phone calls, measured in minutes, is known to have an exponential distribution with the average length of a call equal to $24 minutes. The 16th percentile is a phone call that lasts minutes.