Question

The probability of picking a whole number from {-1, -4, 0,3,7}​

Answer 1

Given,  {-1, -4, 0,3,7}​

We have to find the probability of picking a whole number from  {-1, -4, 0,3,7}​

The probability is calculated by:

Divide the number of events by the number of possible outcomes.

Here,

The event is picking a whole number.

We know that,

The term “whole number” is informal, and typically refers to a positive integer.

So, The event is picking a whole number E = $0,3,4$

So, the number of event is  $n(E)=3$

and the number of possible outcome is  $n(s)=5$

probability

$=\frac{n(E)}{n(S)} \\=\frac{3}{5}$

The probability of picking a whole number is $\frac{3}{5}$

Answer 2

SOLUTION

TO DETERMINE

The probability of picking a whole number from {- 1 , - 4 , 0 , 3 , 7 }

EVALUATION

Here the given numbers are {- 1 , - 4 , 0 , 3 , 7 }

Total numbers in the set = 5

So total number of possible outcomes = 5

Let A be the event that of picking a whole number

Since among - 1 , - 4 , 0 , 3 , 7 the whole numbers are 0 , 3 , 7

Number of whole numbers = 3

So total number of possible outcomes for the event A is 3

Hence the required probability

= P(A)

$\displaystyle \sf{ = \frac{3}{5} }$

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