Lemma
EasyCounting & chance
OpenStax, Introductory Statistics 2e §3.1 Terminology · Try It 1 · Probability · Counting & chance

Terminology · Try It 1

The sample space S is all the ordered pairs of two whole numbers, the first from one to three and the second from one to four (Example: (1, 4)).

(a) S = _____________________________
Let event A = the sum is even and event B = the first number is prime.
(b) A = _____________________, B = _____________________
(c) P(A) = _____________, P(B) = ________________
(d) A AND B = ____________________, A OR B = ________________
(e) P(A AND B) = _________, P(A OR B) = _____________
(f) B′ = _____________, P(B′) = _____________
(g) P(A) + P(A′) = ____________
(h) P(A|B) = ___________, P(B|A) = _____________; are the probabilities equal?

Its source prints no answer for this problem, so there's nothing to check against.

~5 minWritten answer · compare with the solution

OpenStax, Introductory Statistics 2e · §3.1 Terminology · Try It 1

Stuck? A gentle nudge

No hints for this one.

Something off?
Workspace
Your working

Check your full solution

Upload photos of your handwritten work or a PDF, and Lemma will read it and tell you whether it's right — and where it first goes wrong if not.