A group of friends get together every Sunday for a little pick-up hockey.  The age of the 20 regulars is shown below. 20 28 26 46 28 27 41 38 21 38 46 44 50 33 35 37 24 43 25 37 a.) Find the standard deviation, mean, median, and mode for the distribution.

Click the score that is one standard deviation below the mean. IQ Test Scores 30 40 50 60 70 80 90 100 110 120 130 140 150 160

Use these Reading scores to anwser the following questions 7, 7, 8,10,14 ,11,13, 9, 8,12,15,15 A. Find the mean of the reading scores B. Write the value of the standard deviation in decimal form

Students in a statistics class took their first test. The following are the scores they earned. Fill in the stem-and-leaf plot below use the tens place as the stem and the ones place as the leaf. Describe the shape of the distribution. 73 84 95 91 98 97 90 74 74 82 63 79 82 88 74 88 67 81 83 69 73 95 91 94 86 56 94 62 a) Data were collected for            variable(s).     Is it appropriate to make a stem-and-leaf plot for this type of data and number of variables?      . b) Complete the stem-and-leaf plot below.       You must put commas between the leaves. Stems Leaves 5                   c) What shape is the stem-and-leaf plot above?

For the following data:   22 37 14 17 27 41 30 13 19 21 49 37 29 20 16 17 34 16 35 24 16 12 29 30   a. Which is more appropriate, a regular or a grouped frequency distribution table? Explain why.  b. Construct the appropriate table.  c. Based on the table, what is the shape of the distribution?

can be considered as the mid point of the distribution. Select one: a. mode b. none of these C. mean d. median

The ages in years of a random sample of shoppers at a gamming store are shown. 12, 17, 23, 13, 20, 16, 20, 18, 13, 18. Find the range, mean, variance and standard deviation.

the table below shows the number of books the Jefferson Middle school students readeach month for nine months. Month Sept. Oct. Nov. Dec. Jan. Feb. Mar. Apr. May Number of Books 293 280 266 280 289 279 275 296 271 If the students read only 101 books for the month of June, which measure of central tendency will have the greatest change?A. The mean will have the greatest change.B. The median will have the greatest change.C. All measures will have an equal change.D. The mode will have the greatest change.

Find the (a) mean, (b) median, (c) mode, and (d) midrange for the data and then (e) answer the given question. Listed below are the amounts (dollars) it costs for marriage proposal packages at different sports venues. Are there any outliers? 49 60 60 184 200 200 a. Find the mean. 60 65 65 85 95 100 105 150 150 175 300 325 375 400 400 400 400 2000 2500 The mean is $ (Type an integer or a decimal rounded to two decimal places as needed.) b. Find the median. The median is $ (Type an integer or a decimal rounded to two decimal places as needed.) c. Find the mode. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. The mode(s) is(are) $ (Type an integer or a decimal. Do not round. Use a comma to separate answers as needed.) B. There is no mode. d. Find the midrange. The midrange is $ (Type an integer or a decimal rounded to two decimal places as needed.) e. Are there any outliers? Choose the correct answer below. A. There do not appear to be…

B. Directions: For each of the following, calculate the mean, median and mode. Show your solution. (Ungrouped data) 1. 7, 8, 9, 5, 8, 7, 7, 9, 8, 6 2. 100, 120, 132, 122, 145, 121, 105, 109, 3. 115, 119, 114, 112, 112, 109, 104, 106