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 |