On a statistics exam, 8 students received an A, 4 students received a B, and 6 students received a C. If a single student is picked at random, what is the probability that they received an A or C?

Provide the final answer as a fraction.

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

If a single student is picked at random, what is the probability that they received an A or C?

Desired outcomes

Student got an A or C

8 students received an A

6 students received a C

14 total outcomes

Total outcomes

8 students received an A

4 students received a B

6 students received a C

18 total outcomes.

The probability is 14/18 = 7/9.

4 puzzles in 3 hours

step-by-step explanation:

0.02

step-by-step explanation:

time of 9 192 631 770 periods of the radiation corresponding to the transition between the 2 hyperfine levels of the ground state of the caesium 133 atom at 0 k (but other seconds are sometimes used in astronomy)