1.Student grades on a chemistry exam were: 77, 78, 76, 81, 86, 51, 79, 82, 84, 99

1. Construct a stem-and-leaf plot of the data.
2. Construct a box-and-whisker plot of the data and describe the shape of the distribution from your generated graph.

B.A survey was conducted of 130 purchasers of new BMW 3 series cars, 130 purchasers of new BMW 5 series cars, and 130 purchasers of new BMW 7 series cars. In it, people were asked the age they were when they purchased their car. The following box plots display the results.

1. In complete sentences, describe what the shape of each box plot implies about the distribution of the data collected for that car series.
2. Which group is most likely to have an outlier? Explain how you determined that.
3. Compare the three box plots. What do they imply about the age of purchasing a BMW from the series when compared to each other?
4. Look at the BMW 5 series. Which quarter has the smallest spread of data? What is the spread?
5. Look at the BMW 5 series. Which quarter has the largest spread of data? What is the spread?
6. Look at the BMW 5 series. Estimate the interquartile range (IQR).

C. The following data show the different types of pet food stores in the area carry. 6; 6; 6; 6; 7; 7; 7; 7; 7; 8; 9; 9; 9; 9; 10; 10; 10; 10; 10; 11; 11; 11; 11; 12; 12; 12; 12; 12; 12; Generate the numerical summary of the data using technology: mean, median, standard deviation, IQR, Q1 and Q3

PLEASE SHOW WORK FOR BETTER UNDERSTANDING.