On one page of a telephone directory , there were 200 phone numbers . The frequency distribution of their unit's digits is given below :

One of the numbers is chosen at random from the page . What is the probability that the unit's digit of the chosen number is (i) 5 ? (ii) 8 ?

On one page of a telephone directory, there are 150 phone numbers. The frequency distribution of their unit digits is given below One of the numbers is chosen at random from the page. What is the probability that the unit digit of the chosen number is less than 3 ?

On one page of a telephone directory, there are 150 phone numbers. The frequency distribution of their unit digits is given below One of the numbers is chosen at random from the page. What is the probability that the unit digit of the chosen number is greater than 8 ?

On one page of a telephone directory , there were 200 telephone numbers . The frequency distribution of their unit's digits is given in the following table : Out of the numbers on the page , a number is chosen at random . What is the probability that the unit's digit of the chosen number is (i) 6 ? " " (ii) a non zero multiple of 3 ? (iii) a nonzero even number ? " " (iv) an odd number ?

On one page of a directory, there are 160 telephone numbers. The frequency distribution of the unit place digit is given below: From this page, one of the numbers is chosen at random. What is the probability that the unit place digit in the chosen number is an odd prime number?

One number is chosen at random from the numbers 1 to 21. What is the probability that it is prime?

A number is chosen at random from the numbers 20 to 50. What is the probability that the number chosen is a multiple of 3 or 5 or 7 ?

A book contains 92 pages. A page is chosen at random. What is the probability that the sum of the digits in the page number is 9?

An integer is chosen at random from first 200 natural numbers. What is the probability that the integer chosen is divisible by 6 or 8 ?

A natural number is chosen at random from amongst first 500. What is the probability that the number so chosen is divisible by 3 or 5?