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PY 7: GATE ME 2017 Official Paper: Shift 1

Free

CT 1: Ratio and Proportion

3536

10 Questions
16 Marks
30 Mins

**Concept:**

Mean = \(\sum\limits_x {x.{f_x}} \)

**Calculation:**

Value on the die (x) |
1 |
2 |
3 |
4 |
5 |
6 |

Probability P(X) |
1/6 |
1/6 |
1/6 |
1/6 |
1/6 |
1/6 |

Mean = \(\sum\limits_x {x.{f_x}} \)

= 1.(1/6) + 2.(1/6) + 3.(1/6) + 4.(1/6) + 5.(1/6) + 6.(1/6)

= 3.5

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