0.29
Explanation
Step 1
the probability of an event is the likelihood of that event occuring. Probability is a value between (and including) zero and one
[tex]P=\frac{favorabl\text{e outcomes}}{\text{total outcomes}}[/tex]event1: a student getting an A in mathematics
The probability of a student getting an A in mathematics
is 0.14
[tex]\begin{gathered} P(A)=0.14 \\ \end{gathered}[/tex]and
event b:a student getting an A in chemistry
The probability a student not getting an A in
chemistry is 0.85,it means the probability a student getting an A is 0.15.
[tex]P(B)=0.15[/tex]hence,
the probability that a student will get an A
in mathematics or chemistry is
[tex]P(A\text{ or B)=P(A)+P(B)=0.14+0.15=0.29 }[/tex]I hope this helps you
