School |
N_{i }(Total No. of Students) |
N_{i} (sample size) |

A | 120 | n_{1} |

B | 200 | n_{2} |

C | 160 | n_{3} |

Drawing a sample using proportional allocation technique would give n

This question was previously asked in

SSC CGL Tier-II ( JSO ) 2016 Official Paper ( Held On : 2 Dec 2016 )

Option 1 : 15, 25, 20 respectively

Cell

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10 Questions
10 Marks
7 Mins

**Given**

Total number of students to be selected = 60

Size of the population = 180

**Calculation**

n_{1} = (60/480) × 120

⇒ 15

n_{2} = (60/480) × 200

⇒ 25

n_{3} = (60/480) × 160

⇒ 20

**∴**** The value of n _{1}, n_{2}, and n_{3} are 15, 25, 20**