Introductory statistics UE Past Papers Questions.

Briefly define the following terms

1. Statistics
2. Statistic
3. Population
4. Parameter
5. Variable

Answer / Solution

UNSOLVED

How can you choose a sample of 30 items from 100 items using a systematic sampling?

Answer / Solution

UNSOLVED

Which of the following is not a measure of dispersion?

1. The range
2. The 50^th percentile
3. The standard deviation
4. The interquartile range

Answer / Solution

UNSOLVED

The interquatile range is used as a measure of variability to overcome what difficulty of the range?

1. The sum of the range variances is zero
2. The range is difficult to compute
3. The range is influenced too much by extreme values
4. The range is negative

Answer / Solution

UNSOLVED

If the variance of a data set is correctly computed with the formula using n-1 in the denominator, which of the following is true.

1. The data set is a sample
2. The data set is a population
3. The data set could either be a sample or a population
4. The data set is from a census

Answer / Solution

UNSOLVED