The IQR represents the spread of the middle 50% of the data.  Do you think the IQR in this problem is large or small?  Here is the data. 0, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 5, 5, 6, 7, 13, 14 Median is 3. Min # is 0

In this problem, we explore the effect on the mean, median, and mode of adding the same number to each data value. Consider the data set 2, 2, 3, 6, 10. (a) Compute the mode, median, and mean. (Enter your answers to one decimal place.)mode median mean (b) Add 7 to each of the data values. Compute the mode, median, and mean. (Enter your answers to one decimal place.)mode median mean (c) Compare the results of parts (a) and (b). In general, how do you think the mode, median, and mean are affected when the same constant is added to each data value in a set? -Adding the same constant c to each data value results in the mode, median, and mean decreasing by c units. -Adding the same constant c to each data value results in the mode, median, and mean remaining the same. -Adding the same constant c to each data value results in the mode, median, and mean increasing by c units. -There is no distinct pattern when the same constant is added to each data value in a set.

What are 2 situations when you will use median as a measure of central tendency.

Can you find a set of data such that the mean, median, and variance are all equal to each other? Find as many data sets as possible. If none are possible, explain why. If many are possible explain why. If you find any patterns explain what they are and how they are useful in the hunt for understanding this question.

Answer 3 and 4 only

3. (Chapter 3) Find the mean, median, and mode of the data 57, 25, 80, 56, 25, 62, 40, and 93. Show the steps.

Which is the line of best fit for the data shown in the table? y 2 4 6. 6. 8. 8. 9. 9. O y = 0.72x+3.04 O y = 2.68x + 0.75 O y = 0.75x+ 2.68 O y = 2.68x + 0.70 96 XHN456

The stem and leaf plot shows the number of minutes Cal talked on his phone each day for the past 14 days. Stem Leaf 05 15 4 5666 1. 47 Which data set is represented by this plot? O 0, 6, 11, 17, 25, 48, 50, 51, 54, 62, 64, 64, 64, 78 0,5, 11, 15, 26, 45, 46, 46, 46, 52, 60, 71, 84, 87 0,0, 1, 1, 2, 4, 5, 5, 5, 6, 6, 6, 6, 7 O 0,5, 11, 15, 26, 45, 46, 52, 60, 71, 84, 87

What percentage of data would you predict would be between 25 and 50 and what percentage would you predict would be more than 50 miles? Use the Week 4 spreadsheet again to find the percentage of the data set we expect to have values between 25 and 50 as well as for more than 50. Now determine the percentage of data points in the dataset that fall within each of these ranges, using same strategy as above for counting data points in the data set. How do each of these compare with your prediction and why is there a difference? Predicted percentage between 25 and 50: ________________________ Actual percentage: Predicted percentage more than 50 miles: Actual percentage: ___________________________________________ Comparison ____________________________________________________ Why? __________________________________________________________ Drive: 44 20 88 6 71 42 76 63 61 63 84 28 55 33 88 80 86 83 5 85 25 25 54 54 81 73 29 76 78…

Letter (d) Would i be wrong if i said yes the data set consisting of the annual salary for each employee at the MNM company is a population since no employee salary is excluded from the data