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Historically,on Christmas day the weather in a certain Midwestern city has had the following distribution:
Event Relative Frequency
Clear & dry 0.20
Cloudy & dry 0.30
Rain 0.40
Snow 0.10
a- Based on these data, what is the probability that next Christmas will be dry?
b- Based on the data,what is the probability that next Christmas will be rainy or cloudy and dry?
c- Supposing next Christmas is dry, determine the probability that it will be also cloudy?
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For population with mean of µ=60 and a standard deviation of s=24. Determine the z score corresponding to each of following samples.
The heights in centimeters of 5 students are: 165, 175, 176, 159, 170. The sample median and sample mean are respectively:
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Find a 99% confidence interval estimate of the proportion of people who say that they voted.
Romance USA present reported that 11 percent of all books sold are of the romance genre. If a local bookstore sells 316 books on a given day
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