Question
Which survey type is usually biased because those likely
to respond have had especially positive or negative experiences with a given product, service, or brand?Solution
Mail surveys are usually biased because those likely to respond have had especially positive or negative experiences with a given product, service, or brand.
The ratio of the monthly incomes of A and B is 11: 13 and the ratio of their expenditures is 9: 11. If both of them manage to save ₹4,000 per month, t...
If D and E are the mid points of AB and AC respectively of ∆ ABC, then the ratio of the areas of ADE and BCED is ?
A factory manufactures two types of widgets, A and B, in the ratio of 4:5. If the production of widget A rises by 20% while the production of widget B d...
The ratio between two numbers is 2:3. If each number is increased by 6, the ratio between then become 4:5, find the difference between numbers.
- There are 1000 students in a school. The boys to girls ratio is 4:6. If 7 out of every 10 boys pass, and 6 out of every 9 girls pass, find the total number...
In a cricket match, five players contributed to the total runs. The ratio of runs scored by Dhoni to Raina is 5:4, and the total runs scored by all five...
The ratio of tea cups to coffee cups in a canteen is 6:5. If 18 tea cups are broken and 12 new coffee cups are added, the count of both becomes equal. F...
- The ratio of the monthly income of Pooja and Meena is 5:3. Pooja spends Rs. 7500, while Meena spends Rs. 4500. Their combined savings sum up to Rs. 6000. F...
Among 132 examinees of a certain school, the ratio of successful to unsuccessful students is 9 : 2, Had 4 more students passed, then the ratio of succes...
The respective ratio of the number of shops to the number of fans sold in a city was 7:190 in 2016. In 2017, the number of fans sold increased by 20% an...
