Statistics PreAssignment Test Coursework Example

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Category:
Maths Statistics
Level:
College
Type:
GCSE
Pages:
6
Words:
1000

Free Statistics PreAssignment Test Coursework Example

Question 1 c) a population A set of all possible data values for a subject under consideration is called ___. descriptive statistics a sample a population inferential statistics Question 2 c) The number of students in your school Which of the following can be classified as Discrete and Quantitative data? The acceleration of your car as you drive to school The different colors of the eyes of your classmates The number of students in your school The height of all the people in your neighborhood Question 3 b) No Can a frequency distribution have overlapping classes? sometimes No Yes Can’t determine I need more information Question 4 7.0 For a 10 point quiz, the professor recorded the following scores for 8 students: 7, 8, 3, 9, 10, 6, 8, 5 What is the Mean for this set of scores? 7.0 6.9 7.5 8.0 Question 5 a) (left) negatively skewed What type of distribution is described by the following information? Mean = 56          Median = 58.1   Mode = 63 (left) negatively skewed Symmetrical (normal) Bimodal Right (positively) skewed Question 6 70 & 130 In a standardized IQ test, the mean score is 100 and the standard deviation is 15. According to the Empirical rule, 95 % of all those who took the test should have scores between 70 & 130 85 & 115 55 & 145 100 & 130 Question 7 88 A Statistics teacher has the following test scores: 93, 72, 80, 95, 90, 70, 91, 85, 86, 100 What is the median test score of these grades? 90 88 95 80 Question 8 1/6 There are 10 colored balls in a box (5 red, 3 blue, 2 green). What is the probability of picking out a red ball and then a blue ball (If I do not replace the red ball)? 1/6 ½ 3/20 4/5 Question 9 Has a negative linear correlation Given the following scatter diagram, the sample correlation coefficient r: Has a positive linear correlation Has a negative linear correlation Has a title or no correlation Looks close to + 1.00 Question 10 150 If I go into...
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