Good day, please answer no. 1-19 thank you

I. Identification and Problem Solving (2 pts each) 1.It is the science of collecting, organizing, analyzing, and interpreting data in order to make decisions. 2. It is the collection of all outcomes, responses, measurement, or counts that are of interest. 3. This symbol is generally used to denote a sum of multiple terms. 4. Evaluate: n n=1 5. Evaluate: 2= (r + 1 ) 6. Evaluate: E(-1) 7. It is a pictorial representation of data in an organized manner. 8. It is a graph represented by spaced rectangular bars that describe the data points in a set of data. It is usually used to plot discrete and categorical data. 9. It visualizes the frequency of discrete and continuous data in a dataset using joined rectangular bars. 10. It uses pictures or icons to visualize a small dataset of discrete data. 1 1. What is the mean of the following numbers? 10, 39, 71, 39, 76, 38, 25 12. What measure of central tendency is calculated by adding all the values and dividing the sum by the number of values. 13. Determine the mean of the following set of numbers: 40, 61, 95, 79, 9, 50, 80, 63, 109, 42 14. What is the median of the following numbers? 10, 39, 71, 42, 39, 76, 38, 25 15. What is the median score achieved by a student who recorded the following scores on 10 math quizzes? 68, 55, 70, 62, 71, 58, 81, 82, 63, 79 16. What is the term used to describe the distribution of a data set with one mode? 17. The number of service upgrades sold by each of 30 employees is as follows: 32, 6, 21, 10, 8, 11, 12, 36, 17, 16, 15, 18, 40, 24, 21, 23, 24, 24, 29, 16, 32, 31, 10, 30, 35, 32, 18, 39, 12, 20 19. What is the mode of the following numbers? 12, 11, 14, 10, 8, 13, 11, 9