Giving a test to a group of students, the grades and gender are summarized below ABCTotalMale2142036Female10111233Total12253269

Question

asked May 24, 2023 216k views

1 Answer

Jozsef · Answer 1 · 2023-05-31T08:49:43+0000

We need to find the following probability:

$P(male\text{ AND got a B\rparen}$

From the given table, we can see there are 14 student which are male and got a B and the total number of students is 69:

Since the probablity is defined as the number of favorable outcomes divided by the total number of outcomes, we get

$P(male\text{ AND got a B\rparen=}(14)/(69)=0.20289$

Then, by rounding to 3 decimal places, the answer is 0.203