1.The following data represents the number of days off per year for a sample of individuals selected from nine different countries. Find the mean 20, 26,40, 36, 23, 42,35, 24, 30 2. The high temperatures (in degrees Celsius) each day over a three week period were as follows: 17, 18, 20, 22, 21, 19, 16, 15, 18, 20, 21, 21, 22, 21, 19, 20, 19, 17, 16, 16, 17. Compute the median 3. In a sample of 18 students at East High School the following number of days of absences were recorded for the previous semester: 4, 3, 1, 0, 4, 2, 3, 0, 1, 2, 3, 0, 4, 1, 1, 5, 1, 1. Compute mode 4. Determine if "Months of the year" is qualitative or quantitative variable. 5. Determine if "The speed of a car on a Boston tollway during rush hour traffic" is Continuous or discrete variable Determine if the following numerical summary is parameter or statistic. 6. In a survey conducted in the town of Atherton, 25% of adult respondents reported that they had been involved in at least one car accident in the past ten years. 7. Given population: 3, 6, 10,12, 14. Find the standard deviation. 8. Determine the level of measurement of the variable " Volume of water used by a house hold in a day" 9. Find the sample variance of 4, 7, 11, 13, 15. 10. A student scored 65 on calculus test that had a mean of 50 and standard deviation of 10;she scored 30 on history test that had a mean of 25 and standard deviation of 5. In which test she scored relatively higher?