Chapter 2: Data Handling

Solution:-

Total number of odd numbers in given cards = 5

Total number of cards = 10

Probability of getting an odd number = Total number of odd numbers/ total number of

cards

= 5/10

= ½

(b) a Y card

Solution:-

Total number of y cards = 3

Total number of cards = 10

Probability of getting a Y card = Total number of Y cards/ total number of cards

= 3/10

(c) a G card

Total number of G cards = 2

Total number of cards = 10

Probability of getting a Y card = Total number of Y cards/ total number of cards

= 2/10

= 1/5

(d) B card bearing number > 7

Total number B card bearing number > 7= 0

Total number of cards = 10

Probability of getting a Y card = Total number B card bearing number > 7/ total number

of cards

= 0/10

= 0

Solution:-

From the given figure,

Total number of symbol = 800 + 700 + 550 + 450 = 2500

Then,

(i) = (32/100) × 2500

Solution:-

From the given figure,

Total number of ice-creams = 192 + 228 + 180 = 600

Then,

(i) = (38/100) × 600

= 228

∴
yellow colour ice cream should appear in sector having 38%.

(ii) = (32/100) × 600

= 192

∴
red colour ice cream should appear in sector having 32%.

(iii) = (30/100) × 600

= 180

∴
pink colour ice cream should appear in sector having 30%.

Solution:-

From the question it is given that,

Total money spent on 7 categories = Rs. 50,000

Then,

(1) Money spent on Housing = (30/100) × 50,000

= Rs. 15,000

(2) Money spent on Food (including eating out) = (20/100) × 50,000

= Rs. 10,000

(3) Money spent on Car Loan and Maintenance = (25/100) × 50,000

= Rs. 12,500

(4) Money spent on Utilities = (10/100) × 50,000

= Rs. 5,000

(5) Money spent on Phone = (5/100) × 50,000

= Rs. 2,500

(6) Money spent on Clothing = (5/100) × 50,000

= Rs. 2,500

(7) Money spent on Entertainment = (5/100) × 50,000

= Rs. 2,500

Solution:-

From the given figure,

The type of media advertising is the greatest amount of the total is Newspaper.

Solution:-

From the given figure,

The type of media advertising is the least amount of the total is Radio.

Solution:-

From the given figure,

Total amount spent by a company on various modes of advertising for a product,

= 40 + 42 + 23 + 7 + 11 + 39 + 14 + 15 + 9

= Rs. 200

Then,

Per cent of the total advertising amount is spent on direct mail campaigns

= (39/200) × 100

= 19.5%

Solution:-

From the given figure,

Total amount spent by a company on various modes of advertising for a product,

= 40 + 42 + 23 + 7 + 11 + 39 + 14 + 15 + 9

= Rs. 200

Then,

Per cent of the total advertising amount is spent on newspaper and magazine

= ((42 + 23)/200) × 100

= (65/200) × 100

= 32.5%

Solution:-

Internet and web media are included in miscellaneous.