Statistics Review Week 1 Name 1. The frequency distribution below displays the data for a delivery company listing the number of deliveries for yesterday by city location. Calculate the relative frequency. Location Frequency Relative Frequency Auburn 47 Des Moines 76 Renton 32 Tukwila 45 Is this categorical or numerical data? Briefly state a reason the relative frequency column is helpful to the business. 2a) Complete a frequency distribution for the following data that represents the number of hours per day the air conditioner was used at the public library for the past 20 days. As this is quantitative data, calculate a total of five classes; report the cumulative frequency, relative frequency, and cumulative relative frequency. Two decimal places. Number of Hours Per Day 1.2 6.3 4 5.1 10 6.6 1 2 2.6 3 4.6 0.7 6 5 1.1 3 1 4.9 2 2.8 . . Cumulative Cumulative Relative s Hours per day| Frequency Relative Frequency Frequency Frequency Oupto2 8 and up 2b) What proportion of the days had less than 4 hours? 3. Rewrite these numbers in an ordered array: 215 212 200 152 195 346 4. 77!/ 74! = 15! /(1312!) = 5. Complete a stem and leaf diagram for the miles per hour of 15 cars approaching a toll booth. 34, 39, 40, 42, 12, 51, 37, 26, 25, 29, 26, 38, 40, 27, 37 6. Calculate the combination and permutation: 8Cs = 8Ps - 7. A manager at a ski resort in Vermont wanted to determine the effect that weather had on its sales of lift tickets. The manager of the resort collected data over the last two decades on the number of lift tickets sold during the last week in December (y), the total snowfall in inches (X1) and the average temperature in degrees Fahrenheit (x2). Results: Intercept = 8,308 Snowfall Coefficient = 75.59 Temperature Coefficient = -8.25 a) Write the equation. b) What is the estimate for the number of lift tickets sold during that week, if the total snowfall was 20 inches and the average temperature was 30 degrees Fahrenheit