The Venn probabilities for this problem are given as follows:
a. 0.9 = 90%.
b. 0.1 = 10%.
<h3>What is a Venn probability?</h3>In a Venn probability, two non-independent events are related with each other, as are their probabilities.
The "or probability" is given by:
For this problem, the events are given as follows:
- Event A: Checking account.
- Event B: Savings account.
From the text, the probabilities are given as follows:
From item a, the or probability is given as follows:
There is a 0.9 = 90% probability the customer has either a checking or a savings account.
For item b, <u>none is the opposite of either</u>, hence there is a 1 - 0.9 = 0.1 = 10% probability the customer does not have either a checking or a savings account.
More can be learned about Venn probabilities at brainly.com/question/25698611
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