Find the indicated probability.If P(A) = 0.4, P(B) = 0.5, and P(A and B) = 0.3, find P(A or B).
A. P(A or B) = 0.9
B. P(A or B) = 0.5
C. P(A or B) = 0.6
D. P(A or B) = 0.8
Answer: C
Mathematics
You might also like to view...
Find the domain of the vector-valued function.r(t) = ln (t - 1)i + 
j
A. {t ? ?: 1 < t ? 4} B. {t ? ?: 1 < t < 4} C. {t ? ?: t ? 4} D. {t ? ?: t > 1}
Mathematics
Find the extreme values of the function and where they occur.f(x) = 
A. Absolute maximum is 6 at x = -2. B. Absolute maximum is 6 at x = 2. C. Absolute minimum is 0 at x = 1. D. Absolute minimum is 6 at x = 0.
Mathematics
Solve the problem.A sample of 600 grams of radioactive substance decays according to the function 
where t is the time in years. How much of the substance will be left in the sample after 20 years? Round to the nearest whole gram.
A. 0 g B. 1 g C. 244 g D. 778 g
Mathematics
Multiply and simplify.
? 
A. 1
B. 
C. -1
D. 0
Mathematics