1. In a standard deck of 52 cards there are 13 diamonds and 13 hearts (red) and 13 spades and 13 clubs (black).Find the probability of choosing a card at random that is a spade or a 7

A. 0B. 5/12C.1/2D.3/4

2. A bag contains 9 green marbles, 5 yellow marbles and 6 red marbles.You choose one marble.What is the probability of selecting a green or red marble?

A. 8/15B. 6/11 C. 3/4 D. 2/3

3. If you roll one die, what is the probability of getting an even number or a multiple of 3?

A. 1/3B. 2/3C. 1/2D. 1/6

4. You pick a marble from this bag.What is the probability you will choose either a black or white marble?

A. 3/5B. 9/100C. 1/10D. 2/5

5. Mrs. Elder has a box containing 6 cracker, 3 peppermints, 6 bubble gums, and 3 licorice sticks. If she randomly chooses one piece from the box, what is the probability that she will grab a cracker or a peppermint?

A. 1/24B. 1/6C. 1/3D. 1/2

A. For each of the following experiments write sample space 'S' and number of events in the sample space n(S).:

1. One coin and one die are thrown simultaneously.

2. Two-digit numbers are formed using digits 2, 3 and 5 without repeating a digit.

3. The arrow is rotated and it stops randomly on the disc. Find out on which colour it may stop.

B. Write sample space 'S' and number of sample point n(S) for each of the following experiments. Also write events A, B, C in the set form and write n(A), n(B), n(C).

4. One die is rolled,

Event A: Even number on the upper face.

Event B: Odd number on the upper face.

Event C: Prime number on the upper face.

5. Two dice are rolled simultaneously,

Event A: The sum of the digits on upper faces is a multiple of 6.

Event B: The sum of the digits on the upper faces is minimum 10.

Event C: The same digit on both the upper faces.

(1) Which number cannot represent a probability?

A. 2/3C. 1.5

B. 15%D. 0.7

(2) A die is rolled. What is the probability that the number appearing on upper face is less than 3?

A. 1/6C. 1/3

B. 1/2D. 0

(3) What is the probability of the event that a number chosen from 1 to 100 is a prime number?

A. 1/5C. 6/25

B. 1/4D. 13/50

(4) There are 40 cards in a bag. Each bears a number from 1 to 40. One card is drawn at random. What is the probability that the card bears a number which is a multiple of 5?

A. 1/5C. 3/5

B. 4/5D. 1/3

(5) Basketball players Arwind Santos, Japeth Aguilar, James Yap, and Calvin Abueva were practising the ball drop in the basket. The probabilities of success for Arwind Santos, Japeth Aguilar, James Yap, and Calvin Abueva are 4/5, 0.83, 9/10 and 95% respectively. Who had the greatest probability of success?

A. Calvin AbuevaC. Japeth Aguilar

B. Arwind SantosD.James Yap