Probability Test

Result

Probability Test - 7

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

A and B throw a pair of dice. If A throws 9, then B’s chance of throwing a higher number is

A
2/9

B
1/6

C
1/3

D
1/9

Solution

Given that ‘A’ throws 9 and B throws a higher number than 9
That is B throws 10 or 11 or 12
Total number of outcomes on throwing 2 dices = 6 × 6 = 36
Favourable outcomes are: {(4,6) (5,5), (6,4), (5,6), (6,5), (6,6)}
Number of favourable outcomes = 6
∴ Probability of B throwing a number greater than 9 = 6/36 = 1/6
Question 2
1 / -0

A child has a block in the shape of a cube with one letter written on each face as shown in the following.

A A B A C D

The cube is thrown once. Then, the probability of getting ‘A’ is

A
1

B
1/2

C
1/6

D
1/3

Solution

Number of possible outcomes = 6
Number of 'A's on the block = 3
Therefore, the the probability of getting ‘A’ = 3/6= 1/2
Question 3
1 / -0

The probability of an event (other than sure and impossible event) lies between

A
- 1 and 1

B
1/2 and 1

C
0and1/2

D
0 and 1

Solution

The probability of an event (other than sure and impossible event) lies between 0 and 1 . The probability of any event can never be less than 0 and more than 1.
Question 4
1 / -0

The probability expressed as a percentage of a particular occurrence can never be

A
Less than 100

B
Less than 0

C
Greater than 1

D
Anything but a whole number

Solution

The percentage that expresses our uncertainty about an event can never be less than 0. The uncertainty about any event can be expressed as a percentage between 0 and 100 we can now make the following simple observation.
Question 5
1 / -0

If P(A) denotes the probability of an event A, then

A
P(A) >1

B
0 ≤ P(A) ≤ 1

C
- 1 ≤ P(A) ≤1

D
P(A) < 0

Solution

The probability of any event is a number between 0 and 1.(Mathematicians write this as:

"0 ≤ P(A) ≤ 1" where P(A) denote the probability of an event (A)
Question 6
1 / -0

A card is drawn from a deck of 52 cards. The even E is that card is not an ace of hearts. The number of outcomes favourable to E is

A
48

B
4

C
51

D
13

Solution

Total possible outcomes = 52

Event of drawing an ace of hearts (not E) =1

Therefore, Event of not drawing an ace of hearts (E) i.e. the number of outcomes favourable to E = 52 - 1 = 51
Question 7
1 / -0

The probability of getting a rotten egg in a lot of 400 is 0.035. The number of rotten eggs in the lot is

A
28

B
7

C
14

D
21

Solution

Let the number of rotten eggs be x.

Total number of eggs = 400

The probability of getting a rotten egg = 0.035 = x/400

Therefore , x = 0.035 x 400 = 14

So,the number of rotten eggs =14
Question 8
1 / -0

One ticket is drawn at random from a bag containing tickets numbered 1 to 40. The probability that the selected ticket has a number which is a multiple of 5, is

A
1/5

B
3/5

C
1/3

D
4/5

Solution

Number of possible outcomes = 40

Multiples of five between 1 to 40 = {5,10,15,20,25,30,35,40} = 8

Therefore, number of favourable outcomes = 8

So, the probability that the selected ticket has a number which is a multiple of 5 = 8/40= 1/5

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Probability Test - 7

Result

Probability Test - 7

Score

-

Rank

-

SHARING IS CARING

Question 1

2/9

1/6

1/3

1/9

Solution

Question 2

1

1/2

1/6

1/3

Solution

Question 3

- 1 and 1

1/2 and 1

0and1/2

0 and 1

Solution

Question 4

Less than 100

Less than 0

Greater than 1

Anything but a whole number

Solution

Question 5

P(A) >1

0 ≤ P(A) ≤ 1

- 1 ≤ P(A) ≤1

P(A) < 0

Solution

Question 6

48

4

51

13

Solution

Question 7

28

7

14

21

Solution

Question 8

1/5

3/5

1/3

4/5

Solution

User

Question Analysis

My Perfomance

Score

-

Rank

-

Results Announcement on: coming Monday

Stay Tuned: We’ll update you on your result via email or SMS.