Question

A number is chosen from first 24 natural number and its probability is 1/2. Which of the following is not correct?
A number is even.
B number is odd.
C number is greater than or equal to 12.
D number is greater then 12

Answer 1

Answer:

A. if the number is even, the possible outcomes are 2, 4, 6, 8, 10, 12,14, 16, 18, 20, 22 , 24

no.of possible outcomes are 12

total number of possible outcomes = 24

probability= no. of favourable outcomes / total no. of outcomes

hence, probability = 12/24 = 1/2

B. if the number is odd, then the possible outcomes are 1,3,5,7,9,11,13,15,17,19,21,23

no. of favourable outcomes= 12

hence, probability= 12/24=1/2

C. if a number is greater than or equal to 12

then, the possible outcomes are 12, 13,.......24

no. of possible outcomes are 13

hence probability = 13/24

D. if a number is greater than 12

then possible outcomes are 13,14,15,.....24

no. of possible outcomes are 12

hence probability= 12/24= 1/2

Hence option c is incorrect

Answer 2

Step-by-step explanation:

o. p. t. i. . o. n.

OPTION C. .