cards,marked from 5 to 50 are placed. one is drawn randomly.find the probability that a number a prime number less than 10
Answers
Answer:
a) Probability = 1/23
b) Probability = 5/46
Given :
Cards marked with numbers 5-50 are placed in a box and mix thoroughly. A card is drawn from the box at random.
To find :
The probability that the number on the card is
a) a prime number less than 10
b) a number which is a perfect square
Solution :
Probability = Favorable outcome Total number of outcome
Cards marked with numbers 5-50.
The sample size is 46.
a) A prime number less than 10
Favorable outcome (a prime number less than 10) =5 and 7=2
Total number of outcome = 46
Probability of a prime number less than 10
Probability = 2/46
Probability 1/23
b) A number which is a perfect square
Favorable outcome (a number which is a perfect square) =9, 16, 25, 36, 49 = 5
Total number of outcome = 46
Probability of a number which is a perfect square
Probability = 5/46
Step-by-step explanation:
Hope this helps you mate.