Question

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

Answer 1

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