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Basic Concepts of Probability

1.    a. 0.6

b. 0.4

c. not independent

3.    a. 0.22

b. 0.81

c. 0.27

5.     a. 0

b. 0

7.     a. 0.5

b. 0.4

c. 0.6

9.     a. 0.25

b. 0.33

c. 0

d. 0.25

11.   a. P(A)=0.3 P ( A ) = 0.3 ,  P(R)=0.4 P ( R ) = 0.4 ,  P(A∩R)=0.12

b. independent

c. without computation 0.3

13.  a. Insufficient information. The events A and B are not known to be either independent or mutually exclusive.

b. 0.21

c. 0

15.   a. 0.25

b. 0.02

17.   a. 0.5

b. 0.57

c. 0.875

d. 0.75

19.   a. 0.4

b. 0.43

c. 0.38

21.  a. 0.15

b. 0.14

c. 0.25

d. not independent

23. 0.0375

25. 0.931

27. 0

29.   a. 0.36

b. 0.72
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  • line 7225 of /lib/moodlelib.php: call to debugging()
  • line 7292 of /lib/moodlelib.php: call to {closure}()
  • line 71 of /lib/classes/hook/output/before_footer_html_generation.php: call to get_plugins_with_function()
  • line 987 of /lib/classes/output/core_renderer.php: call to core\hook\output\before_footer_html_generation->process_legacy_callbacks()
  • line 97 of /mod/book/tool/print/index.php: call to core\output\core_renderer->footer()