• 0 ≤ P(E) ≤1
• 0 < P(E) < 1
• 0 ≤ P(E) < 1
• 0 ≤ P(E) < 1

A coin is tossed 100 times with the following frequencies:

Head : 75, Tail: 25

Find the probability of getting a head.

A dice is thrown 100 times with the frequencies for the outcomes 1, 2, 3, 4, 5 and 6 as given in the following table:

Find the probability of outcome 1

Two coins are tossed simultaneously 1000 times, and we get
Two heads: 200 times
One head: 600 times
No head: 200 times
Find the probability of getting two heads.

Three coins one tossed simultaneously 600 times with the following frequencies of different outcomes:

The probability of getting 3 heads is

Three coins were tossed 30 times simultaneously. Each time the number of heads occurring was noted down as follows:

0 1 2 2 1 2
3 1 3 0 1 3
1 1 2 2 0 1
2 1 3 0 0 1
1 2 3 2 2 0

Find the probability of getting no head.

The following table shows the birth day of 30 students of class X:

Find the probability that a student was bom on Saturday.

68.

The following table gives the distribution of IQ (intelligence quotient) of 60 pupils of class IX in a school:

IQ	No. of pupils
60–70	2
70–80	3
80-90	5
90-100	16
100–110	14
110-120	13
120-130	7

Find the probability that a student of class IX selected at random has IQ in the interval 80-90.

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The following table depicts the scores of 200 students in a test:

Find the probability that a student selected at random has his score in the interval 650-700.

Following are the marks of a group of 100 students in a test of reading ability:

Find the probability that a student selected at random gets marks in the interval 38–40.