Introductory statistics UE Past Papers Questions.

Consider the following data

4,9,12,10,15,16,30,4,7,2,18

From the above data, find

1. Range
2. 1^st Quartile
3. 2^nd Quartile
4. 3^rd Quartile
5. Inter-quartile range

Answer / Solution

UNSOLVED

The following statements write (T) if it is true and (F) if it is false;

1. if Mean>Medium>Mode, then the skew is positive
2. If Mean<Mediam<Mode, then the skew is negative
3. If Mean=Median=Mode, then the skew is zero.

Answer / Solution

UNSOLVED

1. What is the difference between correlation coefficient and coefficient of determination?
2. The following information obtained from data on body weight(X) and plasma volume(Y)

, ,,, ,

1. Find estimated simple linear regression model
2. Find the correlation coefficient and coefficient of determination

Answer / Solution

UNSOLVED

Write short note on the following terms

1. Probability
2. Independent events
3. Conditional probability
4. Mutually exclusive events

Answer / Solution

UNSOLVED

The following is the probability distribution of X shown in the table below.

1. Find Mean
2. Variance

Answer / Solution

UNSOLVED