Question

30 points answer correctly ----- What is the missing probability in this probability distribution? interval 0-10 11-20 21-30 31-40 41-50 probability 0.105 0.255 ? 0.301 0.214
answers 1.125 0.119 0.125 0.012

Answer 1

All the values of a probability distribution can only add up to 1, as 1 represents all the occurrences of all probabilities happening.

Subtract the known probabilities from 1:

$1 - (0.105 + 0.255 + 0.301 + 0.214)$

$1 - 0.875 = 0.125$

The missing probability is 0.125.