In a survey of $200$ employees of a company regarding their $401($k$)$ investments, the following data were obtained.

$133$ had investments in stock funds.

$91$ had investments in bond funds.

$67$ had investments in money market funds.

$49$ had investments in stock funds and bond funds.

$35$ had investments in stock funds and money market funds.

$33$ had investments in bond funds and money market funds.

$21$ had investments in stock funds, bond funds, and money market funds.

$($a$)$ What is the probability that an employee of the company chosen at random had investments in exactly two kinds of investment funds? $($Enter your answer to three decimal places.$)$

$($b$)$ What is the probability that an employee of the company chosen at random had investments in exactly one kind of investment fund? $($Enter your answer to two decimal places.$)$

$($c$)$ What is the probability that an employee of the company chosen at random had no investment in any of the three types of funds? $($Enter your answer to three decimal places.$)$

I dont get this but I know I dont want to double count has to do with intersections and set theory. I know we have $133$ people with investments in stocks for instance but some of these people might have investments in both stocks and bonds and we wouldnt want to double count it$.($same for other data points$)$ if you could help and provide a detailed solution it be very helpful for me thank you.