The data below represent the number of days absent, x, and the final grade, y, for a sample of college students at a large university. Complete parts (a) through (e) below. No. of absences, x 1 2 3 5 7 8 9 Final grade, y 88.8 85.9 83.0 80.6 77.7 73.3 63.5 68.3 65.4 62.6 (Round to three decimal places as needed.) O A. For every unit change in the final grade, the number of days absent falls by days, on average. O B. For every day absent, the final grade falls by on average. O C. For zero days absent, the final score is predicted to be 88.778. O D. For a final score of zero, the number of days absent is predicted to be days. O E. It is not appropriate to interpret the y-intercept. (c) Predict the final grade for a student who misses five class periods and compute the residual. Is the observed final grade above or below average for this number of absences? The predicted final grade is This observation has a residual of which indicates that the final grade is V average. (Round to one decimal place as needed.)

For the special Thanksgiving edition of the local newspaper, a reporter wrote a heartwarming piece. In the piece there appeared figures on the number of turkey dinners served by various local charities. The histogram below summarizes the data. Use the histogram to answer each of the questions. Frequency (Number of charities) 10- 9. 8 7 5. 3 2 1 90 to 139 140 to 189 190 to 239 240 to 289 Number of turkey dinners (a) What is the class width? (b) According to the histogram, what is the total number of charities? (c) How many charities served from 190 to 239 turkey dinners? O

The ages (in years) and helghts (in inches) of all pitchers for a beseball team are listed. Find the coefficient of variation for each of the two data sets. Then compare the results. -Click the Icon to view the data sets. CV. %D Round to one decimal place as needed.)

A pediatrician wants to determine the relation that may exist between a child's height and head circumference.  She randomly selects 8 children from her practice, measures their height and head circumference and obtains the data shown below.  Height                 Head Circumference 27                           17.5 25                           17 26.5                        17.2 25.5                        17 27.75                       17.4 26.25                      17.4 26                            17.1 27.25                      17.4   data table 3           0.997 4           0.950 5           0.878 6           0.811 7           0.754 8           0.707 9           0.666 10         0.632 11          0.602 12         0.576 13         0.553 14         0.532 15         0.514 16         0.497 17         0.482 18         0.468 19         0.456 20       0.444 21        0.433 22        0.423 23        0.413 24        0.404 25        0.396 26        0.388 27        0.381 28        0.374…

Arm circumferences of 122 outpatients at a clinic in Santa Cruz are measured in centimeters. The resulting data are ... O Numerical and continuous. O Numerical and discrete. O Categorical and ordinal. O Categorical and nominal.

Six damaged cars are selected and taken to bothgarages A and B for estimates. Find the 95% CI forthe difference between the population meanestimates for each garage.   1 2 3 4 5 6 A 890 900 910 710 990 650 B 880 1010 980 790 1042 600

The data set below represents the ages of 36 executives. Find the percentile that corresponds to an age of 53 years old. 28     28     29     30   36    40    40   42   42   43 45     46     46     48   48    50    50   50   53   53 53     55      55    57   57    59    62    62  62   63 63     65      65    65   66    66 Percentile of 53=___________. ( round to the nearest integer as needed)

The given data set is: 9 5 23 26 11 11 Find the median. Find the mean. Round to one decimal place as needed. Find the mode. If the mode does not exist, please enter DNE. If there are multiple modes, please separate them by space and in increasing orde

240 people are asked how many siblings they have? # of Siblings Frequency Relative Frequency Cumulative Frequency 0 52 0.2167   1   0.2083 102 2 38 0.1583 140 3 51 0.2125 191 4 49   240 a. Complete the table (Use 4 decimal places when applicable) b.  What percent of the people have exactly two siblings? %

The following set of data represents the number of orders filled by a national-chain restaurant during a two week period. Construct a five number summary for the the data.   66, 75, 68, 89, 86, 73, 67, 75, 75, 82, 85, 74, 67, 61 (Round to the nearest hundredth, if needed).    Min _________________ Lower Quartile _________________ Median __________________ Upper Quartile _________________ Maximum __________________   What is the range and the interquartile range (IQR)?  Range __________________ Interquartile Range (IQR)  ___________________