Question

19.
4
One day Rahul visited park along with his friend
There he saw a game of chance that consists
of spinning an arrow (as shown in below figure)
that comes to rest pointing at one of the
numbers 1,2,3,4,5,6,7,8 and these are equally
likely outcomes.
2
3
5
A AI
sus
(a) Find the probability that the arrow will point
at 2.
01/2
(11)1/8
(111) 3/8
(iv) 5/8
(b) Find the probability that the arrow will
point at an even number.
(11/2
1 1/8
(lin) 3/8
(1/4
(c) Find the probability that the arrow will point
at a prime number.
(1) 1/2
1 1/8
(11) 3/8
5/8
(d) Find the probability that the arrow will point​

Answer 1

Answer:

1-1/8

2-1/2

3-1/2

4-1/4

5-3/4

Step-by-step explanation:

Answer 2

Given:

Possible outcome for game is 1,2,3,5,6,7,8.

To Find:

Probability of given parts(a),(b),(c)

Step-by-step explanation:

We know probability of any event is calculated by the formula

       $\bf P(E)=\frac{\textrm{no. of possible outcome}}{\textrm{total no. of outcome}}$

a) probability of occurring 2 is

          $P(2)=\frac{1}{8}$

b)Probability of getting even no.

even no. we have in possible outcomes=2,4,6,8

        $\bf P(\textrm{getting even no.})=\frac{4}{8}=\frac{1}{2}$

c) Probability of getting prime no.

    Possible outcome=2,3,5,7

     $\bf P(\textrm{getting prime no.})=\frac{4}{8}=\frac{1}{2}$

Hence, the correct options arepart ( a)-(11) for part (b)-(1) for part (c)1()