Use estimation to select the best response. Do not calculate.
The probability of correctly guessing a telephone number is about

A) 1 out of 100
B) 1 out of 10
C) 1 out of 1,000,000
D) 1 out of 10,000
E) 1 out of 1,000

Question

Use estimation to select the best response. Do not calculate. ​
The probability of correctly guessing a telephone number is about
​
A) 1 out of 100
B) 1 out of 10
C) 1 out of 1,000,000
D) 1 out of 10,000
E) 1 out of 1,000

Quizplus · Accepted Answer

A typical telephone number has several digits, often around 7 to 10 digits long, making the total combinations in the millions. Therefore, the probability of guessing a specific number correctly is extremely low, closer to 1 in a million.

Use Estimation to Select the Best Response