# Statistics & Probability (IMO- Mathematics Olympiad (SOF) Class 10): Questions 46 - 51 of 80

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## Question number: 46

» Statistics & Probability

MCQ▾

### Question

The average of 15 results is 50. If the average of the first seven results is 82 and that of the last seven is 92, then the seventh result is ________

### Choices

Choice (4) Response

a.

468

b.

488

c.

466

d.

486

## Question number: 47

» Statistics & Probability

MCQ▾

### Question

The average temperatures of Monday, Tuesday, Wednesday and Thursday was. The average temperature of Tuesday, Wednesday, Thursday and Friday was . If the temperature on Monday was, then the temperature on Friday was ________.

### Choices

Choice (4) Response

a.

b.

c.

d.

## 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.

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