Simple Probability

What is probability ?

• Measurement of possible occurrence of an event expressed either in the form of fractions or percentage.

• Set of all possible outcomes of an experiment

• Possible outcomes that fulfills certain conditions for a sample space and is subset for the sample space.

Tags

CCSS.7.SP.C.5

When coin are flipped about 100 times, the outcomes is 70 for head and 30 for tail. What is the experimental probability of an event for tail ?

• 0.1

• 0.2

• 0.3

• 0.4

Tags

CCSS.7.SP.C.6

What is the sample space when 1 dice are thrown?

• S = {1,2,3,4,5,6,7,8,9}

• S = {(1,1),(1,2),(1,3)}

• S = {Head, Tail}

• S = {1,2,3,4,5,6}

What is the sign for number of elements in probability?

• n(P)

• n(S)

• n(A)

• n(E)

What is the n(S) for this sample space :

S = {2,3,4,5,6,7,0}

• 7

• 6

• 5

• 8

A box containing cards with number 1 to 9. 1 card will picked from the box. Determine whether the event "Two Digit Number" may occur or not.

• May Occur

• May Not Occur

Tags

CCSS.HSS.CP.A.1

In a box, there are cards with letter

K A S U T. Which of the following will be the sample space if Consonants are chosen.

• Consonant = {K,A,S,U,T}

• Consonant = {A,U}

• Consonant = {K,S,T}

• Consonant = {K,S,U,T}

A number is chosen randomly from the prime numbers between 20 to 40. State the n(S) in the sample space.

[Just write Number]

(a)  

Box A contains one card labelled 1. Box B contains three cards labelled 7, 8 and 9. What is the sample space if 1 card are picked each from box A and B.

• n(S) = (1, 7, 8, 9)

• n(S) = {1, 7, 8, 9}

• n(S) = {(1,7), (1,8), (1,9)}

• n(S) = (1,7), (1,8), (1,9)

Calvin likes to throw dice to Teacher Faiz. After that, Calvin also throw coin to Teacher Faiz. What is the n(S) for the sample space ?

• 6

• 8

• 10

• 12