Probability Test

Result

Probability Test - 1

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Weekly Quiz Competition

Question 1
1 / -0

A student tosses a coin 500 times out of which 360 times head comes up and 140 times tail comes up. What is the theoretical probability and experimental probability of getting head.

A
0.4, 0.62

B
0.5, 0.72

C
0.6, 0.82

D
0.7, 0.92

Solution

Theoretical probability of getting head = 1/2=0.512=0.5

Experimental probability of getting head = 360/500= 0.72
Question 2
1 / -0

A bag contains 5 pink marbles, 2 blue marbles and 3 red marbles. What is the the experimental probability of getting a pink marble if it was picked 4 times when the experiment was performed 10 times?

A
1/5

B
2/5

C
3/5

D
4/5

Solution

Number of times pink marble was picked = 4
Total number of times experiment was performed = 10
Experimental probability of getting pink marble = 4/10=2/5
Question 3
1 / -0

To determine the probability of a coin landing heads up by tossing a coin several times is an example of

A
theoretical probability

B
experimental probability

C
sample probability

D
outcome probability

Solution

The probability of getting heads on tossing a coin several times is based on the frequencies obtained in the experiment.

Therefore, it is an example of experimental probability.
Question 4
1 / -0

A girl throws a die 20 times in which 6 occurs 5 times, what is the experimental probability of getting 6?

A
1/2

B
1/3

C
1/4

D
1/5

Solution

Number of times 6 comes up = 5
Total number of times she threw the die = 20

Experimental probability of getting 6 = 5/20=1/4