Q1:

Find the mean of the following data:
4, 5, 123, 4, 7

A. 4^{}B. 5 ^{}C. 28.6^{}D. 116 
Answer 1:


Q2:

In question 1, which of the following would be the most appropriate "average"?

A. mean B. median C. mode D. standard deviation 
Answer 2:


Q3:

Find the mean of the following frequency distribution:

A. 4 B. 4.5 C. 5 D. 5.5 
Answer 3:


Q4:

The table shows the lengths of a sample of leaves collected from a tree.
Length (cm)

Frequency

0 

2

1 

3

2 

6

3 

4

4  5

2

Find the mean, to 1 d.p., of this distribution. (clue: use midpoints of each interval)

A. 2.4 B. 2.5^{}C. 2.6^{}D. 2.7 
Answer 4:


Q5:

In the above table find the modal interval for the lengths of leaves.

A.1  2 B. 0  5^{}C. 3  4^{}D. 2  3 
Answer 5:

