Data Handling T...

Karan scored 97, 73 and 88 marks (respectively) in his first three examinations. If he scored 80 marks in the fourth examination, then his average score is

Directions: Study the double bar graph given below and answer the question that follows:



Find the ratio of the cost of mangoes per kg in City I to that in City II.

In a bag, there are cards bearing the letters of the word "MATHEMATICS". A card is taken out at random from the bag without looking into the bag. What is the probability of getting a consonant?

The mean of 10 observations was calculated as 40. Upon rechecking, it was detected that the value of 50 was wrongly considered as 10. What is the correct mean?

What will be the range of the following data?

27, 31, 28, 54, 35, 26, 33, 23, 38, 40

Find the mode of the given set of numbers:
1, 1, 2, 4, 3, 2, 1, 2, 2, 4

If the mean of 26, 28, 25, x and 24 is 30, then find the value of x.

When a die is thrown, what is the probability of getting a number not greater than 5?

What is the range of the integers 0, – 11, 15, – 17, 20, 6 and – 4?

Which of the following statements is/are true?
(i) Range of a given data is always from the data.
(ii) Median of a given data may or may not be from the data.

Directions: Read the following bar graph which shows the number of books sold by a bookstore during five consecutive years and answer the question given below.



What is the difference in number of books sold in 1993 and 1990?

Find the median of the following data:

21, 15, 6, 25, 18, 13, 20, 9, 8, 12

How many modes can a data have? 

A die is thrown once. What is the probability of getting a prime number?

The median of the observations 12, 22, 24, 25, x + 3, 30, 32, 35 and 61, arranged in ascending order, is 29. Find the value of x.