英語翻譯
1.At least one of them is a boy.What is the probability?
2.Population and sample
3.why opinion polls fail
4.A 2012 study found that coffee drinkers "who drank at least two or three cups a day were about 10 percent or 15 percent less likely to die for any reason during the 13 years of the study.“
5.is an example of interval number
6.statistical packages
7.to exaggerate the differences on a bar chart
8.two variables tend to move together
9.Find the median
10.Find the Interquartile range
11.Calculate the average absolute deviation
12.Find the population variance and sample variance
1.In a uniform distribution for 0 < X < 10
2.A normal distribution is
3.The height of a normal density function is determined by
4.A normal distribution has a maximum value
5.The shape of the standard normal distribution
6.P(X > 5) in a normal distribution
7.P(X > 15) in a normal distribution
8.What is the statistical distance
9.Z was 2.0 .What was
10.find P (Z > 2.0)
11.STANDARDIZE function
12.NORMDIST function
13.P(X > 20) in a normal distribution is __.
14.NORMSINV function
15.find P(X > 185)