In a town, 60% of the people support team A. If 5 people are selected ..
In a town, 60% of the people support team A. If 5 people are selected at random, then find the probability that exactly 2 of these people support team A. => 0.02 or 0.23 or 0.6 or 0.4..
There are 6 women and 5 men in a department. How many ways can a commi..
There are 6 women and 5 men in a department. How many ways can a committee of 4 people be selected such that there are at least 2 women on the committee? => 250 or 265 or 115 or 150..
In a survey conducted, 62% people prefer watching a football match fro..
In a survey conducted, 62% people prefer watching a football match from home. Find the probability that four persons selected at random prefer watching football from home. => 0.38 or 0.148 or 2.52 or 0.238..
60% of the people in a community are eligible to vote. If 100 people a..
60% of the people in a community are eligible to vote. If 100 people are selected at random, then find the standard deviation of the number of people who are eligible to vote. => 24 or 4.89 or 60 or 40..
A survey of 70 people showed that 40 people liked a product. Write a r..
A survey of 70 people showed that 40 people liked a product. Write a rational number for the number of people who did not like the product. Express it in its simplest form. => 2 6 or 4 8 or 3 7 or 3 6..
A survey of 156 people showed that 104 go for a brisk walk daily. Find..
A survey of 156 people showed that 104 go for a brisk walk daily. Find the 99% confidence interval of the true proportion of people who go for a brisk walk. => 57.3% < p < 76.7% or 63.2% < p < 70.8% or 66.6% < p < 67.4% or 66% <..
In a survey conducted, 4 out of every 7 people play computer games. If..
In a survey conducted, 4 out of every 7 people play computer games. If 147 people are selected at random, then find the standard deviation of the number of people playing computer games. => 36 or 63 or 6 or 84..
In a survey it was found that 20% of people living in a society watch ..
In a survey it was found that 20% of people living in a society watch channel A. If a random sample of 10 people is selected, then find the probability that exactly 5 people in the sample watch channel A. => 0.5 or 0.2 or 0.026 or 0.26..
In a survey it was found that 20% of people living in a society watch ..
In a survey it was found that 20% of people living in a society watch channel A. If a random sample of 10 people are selected, then find the probability that at least 3 people in the sample watch channel A. => 0.59 or 0.3 or 0.2 or 0.323..
The probability that a person selected prefers to go out on a shopping..
The probability that a person selected prefers to go out on a shopping is 0.7. A random sample of 100 people was selected. Find the probability that the proportion of people who prefer to go out on a shopping is greater than 75%. => 16.4% or 11.71% ..
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