Chapter 5 Measures of Central Tendency: Introduction A measure of central tendency is a single value that attempts to describe a set of data by identifying the central position within that set of data. As such‚ measures of central tendency are sometimes called measures of central location. They are also classed as summary statistics. The mean (often called the average) is most likely the measure of central tendency that you are most familiar with‚ but there are others‚ such as the median and the
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Spring 2013 P ROBLEM S ET 1 (D UE F EBRUARY 7‚ T HURSDAY IN CLASS ) Answer the Followings 1. Calculate: a) E[X]‚ E[Y ] b) V ar[X]‚ V ar[Y ] c) Cov[X‚ Y ] d) ρ(X‚ Y ) from the distribution below Y =1 X = 5000 X = 10‚ 000 X = 15‚ 000 0 1/8 1/3 Y =0 1/4 1/8 1/6 (1) 2. Suppose E[X] = 1 and E[Y ] = 2 and suppose X and Y are independent. Evaluate: a) E[2X + 1] b) E[X + Y ] c) E[X − 2Y ] d) E[XY + 1] 3. Suppose V ar[X] = 2‚ V ar[Y ] = 1‚ Cov[X‚ Y ] = 0. Evaluate: a) V ar[X + 2Y ] b) V ar[X − Y ]
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2012. PENALTY MARKS FOR LATE SUBMISSION OF ASSIGNMENT By ONE DAY: 20% to be deducted from your total marks MORE THAN ONE DAY: Your submission will NOT BE ACCEPTED Please submit your CA early. The Blackboard Submission System will be open one week before the deadline. This allows multiple submissions before the deadline. If you have queries that require technical assistance when using the Blackboard Submission System‚ please e-mail bbdms@unisim.edu.sg or contact the helpdesk at 6248 9127. If
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Intro: Hi my name is Shan Anantharajah‚ grade eleven from FMSS Ms. Bevan Grade 11 class. I’m here to nominate the play “Macbeth” by William Shakespeare‚ who used to be one of famous literatures and play writers and currently till now. The brief summary‚ in the play Macbeth‚ is a wise and loyal man who fights for his country (Scotland) for freedom from Norway. He becomes confronted by three witches that tell him and his friend Banquo who are given prophecies that tell them they will gain power. Macbeth
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MGMT1001 s1 2013 – ‘Spot Collection’ Bring to tutorials week beginning 15 April 2013 Topic 5: Understanding Groups and Teams Textbook question: answer Question 2 in the ‘Case Application’ on page 393. Team building excercises may make a team more effective as it builds team chemistry allowing members to be learn about themselves and how they interact with others. Through the use of fun activities the staff are encouraged to use teamwork and leadership when doing these tasks. Some activities‚
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• Question 1 10 out of 10 points Which of the following statements about purchasing enterprise system packages is false? Answer Selected Answer: ERP systems typically involve a lot of custom interfaces to legacy systems. • Question 2 10 out of 10 points Which criterion should a firm consider when evaluating candidate software packages? Answer Selected Answer: all of the above • Question 3 10 out of 10 points Which of the following is a factor
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2007/2008 SEMESTER 1 – COMMON TEST Course : Diploma in Molecular Biotechnology Diploma in Food Science Diploma in Pharmaceutical Sciences Module : CL1104–Mathematics for Life Sciences Jun 2007 Time Allowed: 1 hr INSTRUCTIONS TO CANDIDATES 1 2 3 4 5 This test paper consists of TEN (10) pages including this page. There are SEVEN (7) questions. Attempt ANY SIX (6) questions; show all workings. Answer all questions in the space provided below each question. Formulae list is on the last
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where you restore blood circulation to the person. A – Airway is the step where you clear the person’s airway. B – Breathing is the step where you breathe for the person. 13. Identify 4 differences in administering CPR to a child (ages 1-8 years) rather than for an adult. 1. You have to use only one hand to perform heart compressions. 2. You have to breathe more gently. 3. After 5 cycles of CPR with no response apply AED and use pediatric pads. 4. Use the same compression-breath
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by her apparent self-sufficiency 7. What does Tom’s behavior reveal about his character? Tom comes off as arrogantly self-satisfied‚ fooling himself in the belief of his pseudo-intellectuality. He is virulently racist and cares only for himself. 8. Why does Fitzgerald keep focusing the quality of Daisy’s voice? Because it highlights her character. She draws attention to herself in order to distract her thoughts from the situation at hand. 9. What is Fitzgerald’s message about elite society
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information. Calculate the minimum value of n. (4) (Total 6 marks) 3. (a) Consider the geometric sequence −3‚ 6‚ −12‚ 24‚ …. (i) (ii) Write down the common ratio. Find the 15th term. (3) Consider the sequence x − 3‚ x +1‚ 2x + 8‚ …. IB Questionbank Maths SL 1 (b) When x = 5‚ the sequence is geometric. (i) (ii) Write down the first three terms. Find the common ratio. (2) (c) Find the other value of x for which the sequence is geometric. (4) (d) For this value of
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