Use the following information to answer the next exercise. X ~ N(54, 8) Find the 80th percentile
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Use the following information to answer the next exercise. X ~ N(54, 8) Find the 80th percentile.
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- Find the mean hourly cost when the cell phone described above is used for 240 minutes.Use this data for the exercises that follow: In 2013, there were roughly 317 million citizens in the United States, and about 40 million were elderly (aged 65 and over).[34] 59. If you meet five U.S. citizens, what is the percent chance that four are elderly? (Round to the nearest thousandth of a percent.)For the following exercises, draw a best-fit line for the plotted data.
- Use this data for the exercises that follow: In 2013, there were roughly 317 million citizens in the United States, and about 40 million were elderly (aged 65 and over).[34] 57. If you meet five U.S. citizens, what is the percent chance that exactly one is elderly? (Round to the nearest tenth of a percent.)Use this data for the exercises that follow: In 2013, there were roughly 317 million citizens in the United States, and about 40 million were elderly (aged 65 and over).[34] 58. If you meet five U.S. citizens, what is the percent chance that three are elderly? (Round to the nearest tenth of a percent)Use this data for the exercises that follow: In 2013, there were roughly 317 million citizens in the United States, and about 40 million were elderly (aged 65 and over).[34] 56. If you meet a U.S. citizen, what is the percent chance that the person is elderly? (Round to the nearest tenth of a percent.)
- For the following exercises, use the following data: An elementary school survey found that 350 of the 500 students preferred soda to milk. Suppose 8 children from the school are attending a birthday party. (Show calculations and round to the nearest tenth of a percent.) 56. What is the percent chance that exactly 3 of the children attending the party prefer soda?For the following exercises, use the following data: An elementary school survey found that 350 of the 500 students preferred soda to milk. Suppose 8 children from the school are attending a birthday party. (Show calculations and round to the nearest tenth of a percent.) 55. What is the percent chance that at least one of the children attending the party prefers milk?For the following exercises, use the following data: An elementary school survey found that 350 of the 500 students preferred soda to milk. Suppose 8 children from the school are attending a birthday party. (Show calculations and round to the nearest tenth of a percent.) 57. What is the percent chance that exactly 3 of the children attending the party prefer milk?
- Find the first quartile (Q1), second quartile (Q2), and third quartile (Q3). If Baby A weighs 7.98 pounds and Baby B weighs 8.65 pounds, in what percentile does Baby A and Baby B belong?Sean also took the SAT (μ=1010,σ=200) and had a z score of +0.25. What was his SAT raw score? What was his percentile?Find the z score for the 55th percentile.
