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Author Archives: Anonymous

The statistics below shows the full time equivalent student…

The statistics below shows the full time equivalent student (FTES) count for the history of Lake Tahoe Community College. A sample of 8 years are taken. What is the best prediction for the numbers of these years that have fewer than 1014 FTES? [response1] 25% of all years had at least how many FTES? [response2] 25% of all years had at most how many FTES? [response3] What percent of all the years had between 1014 and 1447.5 FTES? [response4] percent. What is the population standard deviation? [response5] How many standard deviations above the mean is the third quartile? Round your answer to three decimal places. [response6] Hint Textbook Pages

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The histogram below shows the distribution of a recent exam….

The histogram below shows the distribution of a recent exam. Check each of the following that are true statements. Hint Textbook Pages

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Consider the boxplot below. What quarter has the smallest s…

Consider the boxplot below. What quarter has the smallest spread of data? [response1] What is that spread? [response2] What quarter has the largest spread of data? [response3] What is that spread? [response4] Find the Inter Quartile Range (IQR): [response5] Which interval has the most data in it? [response6] What value could represent the 52nd percentile? [response7] Hint Video on Constructing and Interpreting Box Plots Textbook Pages

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The statistics below describe the data collected by a busine…

The statistics below describe the data collected by a business person who researched the purchases of 65 customers. What is the IQR? Check all that apply. Hint Textbook Pages

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The statistics below describe the data collected by a busine…

The statistics below describe the data collected by a business person who researched the amount of money 65 customers spent.   A sample of 10 receipts is taken. What is the best prediction for the number of these receipts that were less than $24.96? [response1] 25% of all receipts were more than how much money? [response2] 25% of all receipts were less than how much money? [response3] What percent of all the receipts were between $18.34 and 35.72? [response4] percent. What is the population standard deviation? [response5] How many standard deviations below the mean is the first quartile? Round your answer to three decimal places. [response6] Hint Textbook Pages

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The following show the results of a survey asking women how…

The following show the results of a survey asking women how many pairs of shoes they own : 2, 4, 4, 5, 7, 8, 8, 9,12,15,17, 28 The mean is: [response1] (Round to two decimal places). The sample standard deviation is: [response2] (Round to two decimal places). The first quartile is: [response3] The median is: [response4] The third quartile is: [response5] Find the number of pairs of shoes that is 2 standard deviations above the mean. [response6] (Round to the nearest whole number). You just met a woman who has 6 pairs of shoes. How many standard deviations below the mean is this woman’s show ownership? [response7] (Round to two decimal places). Hint Video on Statistics and the TI 84 Calculator Textbook Pages

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An elementary school class ran 1 mile in an average of 11 mi…

An elementary school class ran 1 mile in an average of 11 minutes with a standard deviation of 3 minutes. Rachel, a student in the class, ran 1 mile in 8 minutes. A junior high school class ran 1 mile in an average of 9 minutes, with a standard deviation of 2 minutes. Kenji, a student in the class, ran 1 mile in 8.5 minutes. A high school class ran 1 mile in an average of 7 minutes with a standard deviation of 4 minutes. Nedda, a student in the class, ran 1 mile in 8 minutes. Who is the fastest runner with respect to his or her class? Hint Textbook Pages

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The statistics below describe the data collected that repres…

The statistics below describe the data collected that represents the number of calories in a single serving of cereal for 15 types of cereals.   A sample of 30 cereal boxes is taken. What is the best prediction for the number of boxes that contain more than 186 calories? [response1] 25% of all cereals have more than how many calories per serving? [response2] 25% of all cereals have fewer than how many calories per serving? [response3] What percent of all servings of cereal have between 172 and 197 calories? [response4] percent. What is the population standard deviation? [response5] How many standard deviations above the mean is the third quartile? [response6] Hint Textbook Pages

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The following are weights in pounds of a college sports team…

The following are weights in pounds of a college sports team: 165, 171, 174, 180, 182, 188, 189, 192, 198, 202, 202, 225, 228, 235, 240 The mean is: [response1] (Round to the nearest whole number). The sample standard deviation is: [response2] (Round to the nearest whole number). The first quartile is: [response3] (Round to the nearest whole number). The median is: [response4] (Round to the nearest whole number). The third quartile is: [response5] (Round to the nearest whole number). Find the weight that is 2 standard deviations below the mean. [response6] (Round to the nearest whole number). A new player who is 215 pounds wants to join the team. How many standard deviations from the mean is this new player? [response7] (Round to two decimal places). Hint Video on Statistics and the TI 84 Calculator Textbook Pages

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Three students were applying to the same graduate school. Th…

Three students were applying to the same graduate school. They came from schools with different grading systems. Which student had the best GPA when compared to his or her school?   Student Grade School Ave. Grade School Std. Dev. Thuy 3.4 2.8 0.3 Vichet 3.5 3.5 0.4 Kamala 82 86 4   Hint Textbook Pages

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