1. Find the probability of getting a head or a tail in a single toss of a coin?
A. 2 B. 1 C. 1/2 D. 1/4

2. A die is tossed. What is the probability that it shows a 4 or divisible by 2?
A. 1/2 B. 1/3 C. 1 D. 2

3. A player rolls two dice. He wins if and only if the first die shows an even number or if the two
dice show a sum of 9. Find his probability of winning.
A. 4/9 B. 5/9 C. 19/9 D. 9
4. Twenty-one tickets numbered from 1 to 21 are in a box. If two tickets are drawn at random,
determine the probability that both are odd.
A. 11/21
B. 121/420
C. 110/441
D. 11/42

5. Seventeen tickets numbered from 1 to 17 are in a box. If two tickets are drawn at random,
determine the probability that the first one is odd and the second one is even.

A. 9/34
B. 72/289
C. 81/289
D. 8/34

For numbers 6-8.
Some street foods were sampled and tested for the presence of disease-causing bacteria or harmful
chemicals. A random sample of 200 street foods of various types according to how they are prepared
was examined. The table below shows the results:

Type of Number of Food Number of Food Number of Food with Both Total
food with Bacteria with Harmful Bacteria and Harmful

Boiled Only chemicals Only Chemicals
Fried 46 14 32 92
Grilled 35 15 18 68
Total 24 8 40
105 37 S8 200

6. What is the probability that a randomly selected food has both bacteria and harmful chemicals?
A. 8/58
B. 16/142
C. 40/200
D. 58/200

7. What is the probability that a street food selected at random is fried?
A. 35/105
B. 50/142
C. 68/142
D. 68/200

Rude and nonsense answer will be reported. ​