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CBSE Notes 2011-2012 » X-Maths-Term1

Statistics

The median of set of 9 distinct observations is 20.5. If each of the largest 4 observations of the s...

Multiple choice question

The median of set of 9 distinct observations is 20.5. If each of the largest 4 observations of the set is increased by 2, then the median of the new set

The A.M. of a set of 50 numbers is 38. If two numbers of the set namely 55 and 45 are discarded, the...

Multiple choice question

The A.M. of a set of 50 numbers is 38. If two numbers of the set namely 55 and 45 are discarded, the A.M. of the remaining set of numbers is

While computing mean of grouped data, we assume that the frequencies are

Multiple choice question

While computing mean of grouped data, we assume that the frequencies are

The abscissa of the point of intersection of the less than type and of the more than type cumulative...

Multiple choice question

The abscissa of the point of intersection of the less than type and of the more than type cumulative frequency curves of a grouped data gives its

Which of the following is most effected by extreme observations

Multiple choice question

Which of the following is most effected by extreme observations

The mean age of combined group of men and women is 30 years. If the mean of the age of men and women...

Multiple choice question

The mean age of combined group of men and women is 30 years. If the mean of the age of men and women are respectively 32 and 27, then the percentage of women in the group is 