choose the answer,

26.A sample of 10 students is obtained. The students are weighed and ranked according to weight. The median weight is

weight of the fifth student

weight of the sixth student

the median does not exist

average weight of the fifth and sixth

27.The value that occurs most often in a set of data is called the

mode

arithmetic mean

median

none of the above

28.What is the value of the mode when all values in the data set are different?

Zero

One

There is no mode

It cannot be determined unless the values are given

29.When data are categorized as, for example, places or residence (rural, suburban, urban), the most appropriate measure of central tendency is

mean

median

mode

midrange

30.If the tail of the frequency distribution is in the positive direction (to the right), coefficient of skewness is

zero

positive

negative

None of these