# Statistics & Probability (IMO- Mathematics Olympiad Class 10): Questions 48 - 53 of 80

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## Question number: 48

» Statistics & Probability

MCQ▾

### Question

The mean of 50 observations is 44. By error, one observation was noted as was misread as 56. Then the correct mean is ________

### Choices

Choice (4) Response

a.

43.6

b.

78.5

c.

32.5

d.

65.5

## Question number: 49

» Statistics & Probability

MCQ▾

### Question

Two dices are thrown simultaneously. The probability of getting a sum of 8 is ________

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 50

» Statistics & Probability

MCQ▾

### Question

In a single throws of a die, the probability of getting a number is greater than 2 is ________

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 51

» Statistics & Probability

MCQ▾

### Question

A bag contains Five green, four blue and Three orange marbles. If a marble is picked at random, then the probability that it is not an orange marble, is ________

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 52

» Statistics & Probability

MCQ▾

### Question

When two dice are thrown, the probability of getting the odds in favour of getting the sum 5 is ________

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 53

» Statistics & Probability

MCQ▾

### Question

The mean weight of a class of 34 students is kg. if the weight of the teacher is included, the mean rises by 500 g. Then the weight of the teacher is ________

### Choices

Choice (4) Response

a.

62 kg

b.

175 kg

c.

64 kg

d.

72 kg

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