SOLUTION: Below shows the blood types of randomly chosen people in the US. If a person is chosen at random, use the chart to find the following. ----------- --A---------B----------AB--

Question 1008142: Below shows the blood types of randomly chosen people in the US. If a person is chosen at random, use the chart to find the following.

--------------A---------B----------AB--------------O
positive----110-------25----------10-------------130
negative----30--------10-----------5---------------20

a) P(negative & B)

b) P(negative | B)
c) P(B | negative)
d) P(A)
e) P(A & positive)
f) P(A or O)
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
If a person is chosen at random, use the chart to find the following.
--------------A---------B----------AB--------------O---Total
positive----110-------25----------10-------------130.... 275
negative----30--------10-----------5---------------20... 65
Total.......140.......35..........15.............150.... 340

a) P(negative & B) = 10/340
-----------------------
b) P(negative | B) = 10/35
------------------------
c) P(B | negative) = 10/65
----------------------
d) P(A) = 140/340
-------------------------
e) P(A & positive) = 110/340
----------------------------
f) P(A or O) = (140+150)/340 = 290/340
------------
Cheers,
Stan H.
--------------
RELATED QUESTIONS
Distribution of blood types. All human blood can be “ABO-typed” as one of O, A, B, or (answered by math_tutor2020)

34% of people in the US have type A+ blood. You randomly select 73 people in the US and... (answered by stanbon)

38% of people in the US have type O+ blood. 1) If randomly selecting 5 Americans, ask... (answered by stanbon)

In a group of 1,500 people, 585 have blood type A, 165 have blood type B, 690 have blood... (answered by Boreal)

Blood type AB is found in only 3% of the population�. If 245 people are chosen at random, (answered by lynnlo)

need help with 2nd part of question. Blood type AB is found in only 3% of the... (answered by Boreal)

a group of 100 people have the blood types A20 B24 AB10 O46. If 1 person is selected... (answered by stanbon)

looking for some help and need it too. one question has me stoped dead and two others... (answered by stanbon)

Here is the probability model for the blood type of a randomly chosen person in the... (answered by ewatrrr)