Question

Homework: 4-1 Basic Concepts of Probability

< Question 7, 4.1.17 >
O
Express the indicated degree of likelihood as a probability value between 0 and 1.
When using a computer to randomly generate the last digit of a phone number to be called for a survey, there is 1 chance in 10 that the last digit is zero.
The probability is
(Type an integer or a decimal. Do not round.)
HW

Answer 1

Explanation:

a probability is always desired cases over total possible cases.

so, in this question we have 10 total possible cases (0 .. 9 as last digit of a phone number). and 1 desired case (0 as the last digit).

the corresponding 1 chance in 10 is then literally written and calculated as probability as 1/10 = 0.1