Question

Hello!!

Find the probability that a number chosen at random from the integers between 10 and 20 inclusive is a multiple of 5 or a multiple of 2.

Proper explanation required!!

Urgently needed

Answer 1

hey! your answer↓

s:integers between 10 and 20

s={11,12,13,14,15,16,17,18,19}

n(s)=9

A:multiple of 5 or 2

A={12,14,15,16,18}

n(A)=6

P(A)=n(A)/n(s)

=6/9

=2/3




the probability of integers between 10 and 20 which are multiple of 5 or 2 is 2/3

B: multiple of 5
B={15}
n(B) =1
P(B) =1/9

C: multiple of 2
C={12, 14,16,18}
n(C) =4
P(C) =4/9

hope that it will help you

Answer 2

:integers between 10 and 20

s={11,12,13,14,15,16,17,18,19}

n(s)=9

A:multiple of 5 or 2

A={12,14,15,16,18}

n(A)=6

P(A)=n(A)/n(s)

=6/9

=2/3

the probability of integers between 10 and 20 which are multiple of 5 or 2 is 2/3

B: multiple of 5

B={15}

n(B) =1

P(B) =1/9

C: multiple of 2

C={12, 14,16,18}

n(C) =4

P(C) =4/9

hope this answer helpful u