Question

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Answer 1

1. the probability bis 3

2. the probability is

Answer 2

Answer:

2)

i) 1/6

ii) 1/6

3)1/2

Explanation:

probably of an event is defined as the ratio of total number of possible outcomes of event to a total number of possible outcomes

let S be an event,the Probability is defined as::

$p(s) = \frac{n(s)}{t(s)}$

p(s) is the Probability

n(s) is the number of possible outcomes

t(s) total number of outcomes

2) 6 marbles in the box,they marked from 1 to 6 numbers on each of them

i) let s be the event,

to draw a marble with number 2 has only one possibility because in the box only one marble has number 2 i.e,n(s) =1

total number of outcomes will be 6, because they are 6 in number,i.e,t(s) =6

so, Probability of drawing a marble with number 2 , P(s) = 1/6

ii) let s be an event:

to draw a marble with number 5 has only one possibility because in the box only one marble has number 5 i.e,n(s) =1

total number of outcomes will be 6, because they are 6 in number,i.e,t(s) =6

so, Probability of drawing a marble with number 5, P(s) = 1/6

3) let s be the event that , A coin is flipped to decide which team starts the game,

generally, A coin has two sides(head and tail)

so the total number of possible outcomes be t(s) = 2

probability that our team starts,so it has only one possibile outcome that our team will start

so, n(s) be 1

hence , Probability that our team starts first P(s) = 1/2