Probability
and Statistics Worksheet 1
Answer Key
| 1 | The results of a
class test of six students were 91, 99, 87, 83, 77, 83.
Find the following: a.   
Mean:
86.67 b.   
Median:
85 c.   
Mode:
83 | 
| 2 | The rates of five
vegetables in the market were $35, $30, $40, $38, $40. Find the following: a.    Mean: $36.6 b.   
Median:
$38 c.   
Mode:
$40 | 
| 3 | The amount of
rainfall recorded in a town in mm in a year was 60, 70, 65, 73, 77, 53, 68,
76, 62, 50, 53, 53. Find the following: a.    Mean: 63.33 b.   
Median:
63.5 c.   
Mode:
53 | 
| 4 | The costs of 5 pens
in the market are $3.4, $5.1, $ 3.4, $2.4, $4. Find the following: a.    Mean: $3.66 b.   
Median:
$3.4 c.   
Mode:
$3.4 | 
| 5 | The points scored by
seven teams in a quiz competition are 10, 25, 13, 18, 19, 20, 25. Find the following: a.    Mean: 18.57 b.   
Median:
19 c.   
Mode:
25 |