# Mathematics-Probability [NSTSE (National Science Talent Search Exam- Unified Council) Class 9]: Questions 1 - 7 of 36

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## Question 1

Probability
Edit

### Question

MCQ▾

The probability that in a family of 2 children, there will be at least one girl is

### Choices

Choice (4)Response
a.
b.
c.
d.1

## Question 2

Probability
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### Question

MCQ▾

A card is drawn from a packet of 120 cards numbered 1 to 120. The probability of drawing a number which is a square is

### Choices

Choice (4)Response
a.
b.
c.
d.

## Question 3

Probability
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### Question

MCQ▾

If a coin is tossed thrice, the probability of getting at least one tail is

### Choices

Choice (4)Response
a.
b.
c.
d.None of the above

## Question 4

Probability
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### Question

MCQ▾

The probability of three coins falling two tails and one head when tossed simultaneously is

### Choices

Choice (4)Response
a.
b.
c.
d.Question does not provide sufficient data or is vague

## Question 5

Probability
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### Question

MCQ▾

Two numbers are chosen from 13 to 21. The probability for the two numbers to be consecutive is

### Choices

Choice (4)Response
a.
b.
c.
d.None of the above

## Question 6

Probability
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### Question

MCQ▾

A container contains 7 red and 11 yellow marbles. If a marble is drawn at random, the probability that the drawn marble to yellow is

### Choices

Choice (4)Response
a.
b.
c.
d.

## Question 7

Probability
Edit

### Question

MCQ▾

The probability that a consonant selected at random in English language is a ‘m’ is

### Choices

Choice (4)Response
a.
b.
c.
d.All of the above