Question
11) Which of the correlations would best fit the following graph?: 3.0 2.0 1.0 1.0 X...
11) Which of the correlations would best fit the following graph?: 3.0 2.0 1.0 1.0 X 2.0 3.0 OA) 1.0 OB) -0.87 OC) -0.10 D) 0.95
13) The combination lock on a high school locker is three numbers where each digit can be 0-9, with repeated numbers allowed. What is the probability of guessing the correct combination on the first try?: OA) 0.0010 B) 0.0014 OC) 0.0083 OD) 0.0045 For questions 14-16, consider the following list of variables: I. Rainfall in inches II. Eye color III. Gender IV. Number of customers in a day V. Ranking of beauty pageant winners 14) Which of the preceding variable(s) would be considered ordinal?: OA) IV and V OB) V only OC) II and III OD) and V
Answers
11.
since as graph showing that X and Y are negatively related and relationship is strong so correlation cofficieint should be negative and close to 1 hence
correct option is
(B) -0.87
13.
since each digit of lock can take any value from 0-9
Hence total number of possible codes 103
so probability of guessing code correctly in first try is 1/103=0.001
Hence option (A) is correct
14.
since we ordinal variable are variables that we can arrange in the increasing order or decreasing order
Hence
option (D) is correct
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