||| O DESCRIPTIVE STATISTICS Using the IQR to find outliers in a... = 2₁ 23= (b) Find the interquartile range (IQR) of the data set. The following 10 scores were input in the gradebook for Prof. Roberts's class. 73, 75, 76, 78, 79, 82, 82, 86, 87, 88 Complete the parts below to identify any outliers. (a) Let Q₁ be the lower quartile and Q3 be the upper quartile of the data set. Find 2₁ and 23 for the data set. -0 IQR = X Lower boundary: Upper boundary: X 3 X 0/5 Dianne (c) Calculate a lower boundary using Q₁-1.5-IQR. Calculate an upper boundary using Q3 +1.5-IQR. (Note that 1.5-IQR means 1.5 times the IQR.) Ś Español

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any outliers, (Clearly show calculations for upper and lower fence and justify if outliers exist.) V b Can you give a possible reason for why the outlier occurred? The ages of a team of female gymnasts are given in this data set: 18, 23, 14, 28, 21, 19, 15, 32, 17, 18, 20, 13, 21 Use CAS to determine the values of Q, and Q. a Use these values to justify whether any outliers exist (show calculations) and list them clearly. Draw a box plot to summarise the data, marking outliers if they exist. You may use your CAS calculator to help you with this. Make sure your boxplot has a clearly labelled number line, and all values are represented accurately.

Are cigarettes bad for people? Cigarette smoking involves tar, carbon monoxide, and nicotine (measured in milligrams). The first two are definitely not good for a person's health, and the last ingredient can cause addiction. Use the data in the table above to make a stem-and-leaf display for milligrams of tar per cigarette smoked. (Enter NONE in any unused answer blanks.) Are there any outliers? A. Yes, 1.0 may be an outlier. B. No, there are no outliers.     C. Yes, 29.8 may be an outlier.

Use the following data set to answer Questions #12 and #13. 65 55 65 54 60 57 55 58 63 58 57 65 57 58 84 Are there any outliers? There exists at least one outlier in the data set at 84. There exists outliers in the data set at 55 and 84. O There are no outliers in the data set.

5. The table below shows the temperature for each month in St. Pete, Florida. Use the table to find the 5 number summary and IQR. Min: Month Jan Feb Mar Apr May Jun 64 68 Temp 63 74 80 Min: 16 4 (3756 10 Find the 5 number summary: Are there any outliers? Show work. ( 18 Name Al Time (sec) Q1: 11.3 Q1: Median: Find the 5 number summary: 16. Median: Is 18.6 an outlier? Show work. 6. The following gives the time it takes to run 100M with 10 friends. Use the table to find the 5 number summary and IQR. 5 10 3 10 00 0-8-1-57 5 (12) 84 86, 86 Q3: 10.3 July Aug Sept 84 Beth Cindy David Emily Frank Gary Helen Ida 12.9 11.9 11.1 10.8 10.5 12.0 154 Q3: Max: 18.6 1500 Oct Nov Dec 70 78 48 IOR: Max: Jay 10.9 IQR:

1. The two plots have similar distrubutions. Are the distrubutions skewed left, approximtly symmetric, or skewed right? 2. Which is greater, the mean or the median, within each plot? Why does this make snese, gicen the type of distrubution you identified in the first part? 3. The population has drastically declined over recent years. Does the data show a difference in bee prefrence towards high quality hives versus how quality hives? Usse statistical evidennce to support your response.

Please see the image below. I believe I have chosen the correct answer for this, but I just want to get a second opinion.

Use the accompanying data set to complete the following actions. a. Find the quartiles. b. Find the interquartile range. c. Identify any outliers. 41 50 35 43 41 37 41 46 43 39 36 54 42 35 15 53 37 49 29 29 a. Find the quartiles. The first quartile, Q₁, is 1. The second quartile, Q₂, is The third quartile, Q3, is (Type integers or decimals.) b. Find the interquartile range. The interquartile range (IQR) is (Type an integer or a decimal.) c. Identify any outliers. Choose the correct choice below. O A. There exists at least one outlier in the data set at (Use a comma to separate answers as needed.) OB. There are no outliers in the data set. 0 C

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