In a study, 300 people were given medication with the following side effects: 50 people have headaches 32 people experienced tiredness 11 people had both headaches and tiredness Find the probability that a randomly selected participant had ONLY headaches: P (ONLY headaches) Write your answer as a fraction.  

Classify the two events ” student is MALE” and “student chose BUSINESS” as : complementary or NOT complementary.

Fill in the chart above, and then you will have several questions based on rolling two dice.  So if two dice are rolled,  Find the ODDS AGAINST the sum of the dots being a 9 ?

Find the probability that the selected student will be MALE. Write your answer as a fraction.

In a study, 175 patients out of 400 experienced extreme hunger after taking a medication.  If one patient is selected, find the probability that the patient DID NOT suffer from extreme hunger. Write your answer as a fraction.

In a M&M bag, I had 10 brown, 6 red, 4 blue, 9 yellow, and 1 orange.  If one candy is selected, find the P ( red ).  Write your answer as a fraction.

If the odds AGAINST Harry the Horse winning the race are 8 : 5, find P ( Harry will WIN) Write your answer as a fraction.

How do natural killer (NK) cells identify parasites and damaged host cells to destroy?

Which of the following provides the body with the best, most effective physical barrier defense against disease?

In some parts of Africa, malaria is present at a fairly low but constant level in the population at all times. What pattern of disease does this represent?