6934647 1/ 12 5/12 3/12 Assessment: Directions: Choose the letter of the correct answer. 1. It is a measure of central tendency that is also known as average. Mean a. Variance b. Standard Deviation c. Median d. 2. What is the mean of the given set of numbers 176, 80, 81, 89, 89)? a. 81 b. 82 c. 83 d. 89 3. A measure of variability that is known as the average squared deviation from the mean. a. Variance b. Standard Deviation c. Median d. Mean 4. Find the mean of the given discrete random variable. Y 0 1 2 3 PY) 1/5 2/5 1/5 1/5 a. 6 b. 1.5 c. 1.4 d. I 5. Which of the following symbols denotes variance? b. 02 c. 62 d. A Construct the probability distribution for the random variables described in each of the following situation given below. 1. Four coins are tossed. Let Y be the random variable that represent the number of tails that will occur. Find the values of random variable Y. IV: Reflection Do you understand now the concepts of Finding the future value and present value of both simple annuities and general annuities? Kindly check the level of your understanding below. Poor Good O Excellent V. References 1. Statistics Learner's Module 11 2. Teachers Guide in Statistics 11 3. Statistics Book VI: Key AnswerIII. Learning Activities ACTIVITY: Directions: Complete the given table then find a. Mean, b. Variance and c. Standard Deviation of the given discrete random variable. P(X) X * P(X) X2 * P(X)