4. The expected value of a random variable X is 10 and its variance is 16. If the random variable X is multiplied by 10 then: A. E(X)=10 and Var(X)=16 B. E(X)=100 and Var(X)=1600

For the three-part question that follows, provide your answer to each question in the given workspace. Identify each part with a coordinating response. Be sure to clearly label each part of your response as Part A, Part B, and Part C.Part A: What is the term for a generalization made about a population using the data from a sample?Part B: Name one challenge that may occur when using a sample to draw a conclusion about a population.Part C: A researcher collects data about the annual salary of employees who work in the information technology field. It would be difficult to survey all employees, so a sample of the population is surveyed. The data is recorded below. Use the table to write one conclusion that can be drawn. Explain why this conclusion is valid. Salary Range (Per Year) Number of Employees $50,000-$59,999 147 $60,000-$69,999 159 $70,000-$79,999 225 $80,000-$89,999 27

Please assist and answer on questions D, E, F, G, H, and I on this problem.  Thank you.

Write Up Assignment 4: Due March 24th Dt. Parker is a math professor at University Blackwood, home of the fighting corn nuggets. Dr. Parker has been gathering information on his Algebra I class for years. Dr. Parker also serves as a member of the graduate faculty in the Applied Statistics department at UB. You are one of Dr. Parker's graduate assistance (which can be a thankless position at times). Dr. Parker has given you a data set of his Algebra I case. Historically the final exam average for Dr. Parker's Algebra course has been 79.8. For this assignment you will use the data set provided and complete the following data analysis. 1. A correlation analysis For this analysis, you will select the correct variable or variables to be used and you will provide the following information below as a well written, referred document. A research question Variables used for the question The correct null and alternative hypotheses A description and the assumptions for the analysis Relevant SPSS…