Probability Test

Result

Probability Test - 3

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Weekly Quiz Competition

Question 1
1 / -0

Directions For Questions

Two coins are tossed simultaneously 50 times with the following outcomes:

Outcome 2 Heads 1 Heads No Heads

Frequency 15 10 25

...view full instructions

What is the probability of getting more than two heads?

A
3/10

B
1

C
0

D
0.5

Solution

When two coins are tossed simultaneously, the occurrence of more than two heads is an impossible event. So, probability of the given event is 0.
Question 2
1 / -0

Directions For Questions

Two coins are tossed 50 times with the following outcomes:

Outcome 2 heads 1 heads No heads

Frequency 15 10 25

...view full instructions

What is the probability of getting one tails?

A
1/5

B
3/10

C
1/2

D
7/10

Solution

Probability of getting one tails = Probability of getting one heads
= Number of times one heads occurs/Total number of trials
= 10/50
= 1/5
Question 3
1 / -0

Directions For Questions

Two coins are tossed 50 times with the following outcomes:

Outcome 2 heads 1 heads No heads

Frequency 15 10 25

...view full instructions

What is the probability of getting 1 heads?

A
2/5

B
7/10

C
4/5

D
1/5

Solution

Probability of getting one heads and one tails = Number of times one heads and one tails occurred/Total number of trials = 10/50 = 1/5
Question 4
1 / -0

For a event A, P(A) = 0. What is the value of P(not A)?

A
0

B
1

C
More than 1

D
Between 0 and 1

Solution

We have P(A) + P(not A) = 1
⇒ P(A) = 1 - P(not A)
And P(not A) = 1 - P(A)
⇒ P(not A) = 1 - 0 [∵ P(A) = 0]
⇒ P(not A) = 1
Question 5
1 / -0

The probability of occurrence of an impossible event is

A
0

B
1

C
more than 1

D
between 0 and 1

Solution

The probability of the occurrence of an impossible event is always 0.
Question 6
1 / -0

If a coin is tossed, what is the probability of getting a heads?

A
0

B
1

C
1/2

D
1/4

Solution

Sample space = {H, T}
Total number of possibilities = 2
Number of favourable outcomes = 1
∴ Probability = 1/2

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Re-Attempt Weekly Quiz Competition

Outcome	2 Heads	1 Heads	No Heads
Frequency	15	10	25

Outcome	2 heads	1 heads	No heads
Frequency	15	10	25

Outcome	2 heads	1 heads	No heads
Frequency	15	10	25

Probability Test - 3

Result

Probability Test - 3

Score

-

Rank

-

SHARING IS CARING

Question 1

3/10

1

0

0.5

Solution

Question 2

1/5

3/10

1/2

7/10

Solution

Question 3

2/5

7/10

4/5

1/5

Solution

Question 4

0

1

More than 1

Between 0 and 1

Solution

Question 5

0

1

more than 1

between 0 and 1

Solution

Question 6

0

1

1/2

1/4

Solution

User

Question Analysis

My Perfomance

Score

-

Rank

-

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