Question

A no. is selected at random from the first ten natural no. what will be the probability of the no. being prime​

Answer 1

Answer:

2,3,5and7 are prime numbers from 1-10

therefore probability =4/10=2/5

Answer 2

Answer:

0.4

Step-by-step explanation:

Sample space {1,2,3,4,5,6,7,8,9,10}

Sample space of choosing a prime {2,3,5,7} (where,1 is neither a prime nor a composite)

Probability of choosing a prime= no of prime less than 10/ total outcome

                                                   =4/10

                                                     =0.4