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`        A COIN IS TOSSED 6 TIMES .FIND THE NO OF GETTING 4 HEADS AND 2 TAILS`
3 years ago

Arnab Roy
34 Points
```							Use Binomial Theorem nCr (p)^r (q)^n-r probability of getting a head is 1/2=p probability of NOT getting a head is 1/2=q n=6 r=2 6C2 *(1/2)^2 * (1/2)^6-2 = 6C2*(1/2)^6 =15/64
```
3 years ago
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### Course Features

• 101 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions