Math, asked by simrandeeps441, 1 month ago

Q1: ਦ ਿੱਤੀ ਗਈ ਬਾਰੰਬਾਰਤਾ ਸਾਰਣੀ ਲਈ ਬਹੁਲਕ ਵਰਗ ਾ ਵਰਗ ਦ ੰਨ ਦਕਹੜਾ ਹ੄?

For the given frequency distribution , the class mark of the modal class is

ਵਰਗ Class 10-20 20-30 30-40 40-50 50-60

ਬਾਰੰਬਾਰਤਾ Frequency 43 34 65 71 56

1. 25

2. 30

3. 45

4. 55​

Answers

Answered by nikhilkumawat115
0

Answer:ok

Step-by-step explanation:

4x  

2

−(5k+1)x+5x=0 be α and α+1

∴α+α+1=  

4

5k+1

⇒α=  

8

5k−3

 and α(α+1)=  

4

5k

 

⇒  

8×8

(5k−3)(5k−3+8)

=  

4

5k

 

⇒(5k−3)(5k+5)=80k

⇒(5k−3)(k+1)=16k

⇒5k  

2

−14k−3=0

⇒(k−3)(5k+1)=0

⇒k=3,  

5

−1

 

Hence, negative value of k is  

5

−1

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