I Look at each table and answer the questions. (10 pts each)

1) Evaluation of the quality and price of food for restaurants in Los Angels Restaurant Quality assessment Price of food (dollars) 1 Good 18 2 Very good 22 3 Good 28 4 Excellent 38 5 Very good 33 6 Good 28 7 Very good 19 8 Very good 11 9 Very good 23 10 Good 13 11 Good 35 12 Very good 30 13 Good 20 14 Excellent 20 15 Very good 25 16 Good 15 17 Very good 18 18 Very good 28 19 Very good 30 20 Good 25 a) Construct a crosstab where the rows indicate the evaluation of the Quality and price columns for food. Use the intervals $ 10-19, $ 20-29 and $ 30-39 for prices. b) Calculate the percentages in the row. c) Calculate the percentages of the columns.

2) Use the data from the previous exercise to construct a stem plot and sheet with the information provided in the column titled: Price of the meal and Answer the following questions: a) What is the cheapest price of food in these restaurants and How has the quality been evaluated for it? b) What is the highest price of food in these restaurants and how has Has the quality been evaluated for it? c) What is the price that appears most frequently among these restaurants?

3) The following table shows the number of minutes it takes for a sample than 40 students to get to school from home. 14 21 23 21 16 19 22 25 16 16 24 24 25 19 16 19 18 19 21 12 16 17 18 23 25 20 23 16 20 19 24 26 15 22 24 20 22 24 22 20 a) Create a frequency distribution using classes 12-14, 15-17, 18-20,21-23 and 24-26. b) Construct a frequency histogram for the information obtained.

4) La siguiente tabla muestra los valores obtenidos en asistencia a juntas tanto para hombres (x) como para mujeres (y). Trace una grfica de dispersin que modele los datos y determine si hay alguna relacin. Hombres (x) Mujeres (y) 10 8 10 7 9 7 9 6 8 5 7 6 7 5 7 4 6 4 6 3 5 4 5 3 4 4 4 3 3 2