Question

What is the probability of a number
picked from first twenty natural numbers is even composite number?​

Answer 1

$\huge\bold\purple{♡} {\orange{\underline{\red{\mathfrak{ Question}}}}} \bold\purple{♡}$

What is the probability of a number

picked from first twenty natural numbers is even composite number?

$\huge\bold\purple{♡} {\orange{\underline{\pink{\mathbf{Solution}}}}} \bold\purple{♡}$

Sample space

= {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, .....….......20}

Favorable out comes

= {4, 6, 8, 10, 12, 14, 16, 18, 20}

Probability of getting even composite number from 1st twenty natural numbers

= No. of fav outcomes/No.of total outcomes

= 9/20

Answer 2

Answer:

9/20

Step-by-step explanation:

Even composite numbers from first 20 natural numbers =4, 6, 8, 10, 12, 14, 16, 18, 20

No. even composite numbers from above =9

No. of ways in which a number be picked from first 20 natural =20

∴ Probability of picking up an even composite number from first 20 natural numbers =9/20.