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Consider these sample data:x1=12,x2=8,x3=9,x4=17

a) Find n.

b) Compute ∑xi.

c) Determinex-.

Short Answer

Expert verified

a)4b)46c)11.5

Step by step solution

01

Step 1. Given information.   

Consider these sample data:x1=12,x2=8,x3=9,x4=17

02

Step 2. Find n.

The sample size isn=4.

03

Step 3. Compute ∑xi.

∑i=4xi=x1+x2+x3+x4=12+8+9+17=46

04

Step 4. Compute x-.

x-=∑i=4xin=464=11.5

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