*Additional probability practice (on the Excels)

An allergy drug is tested by giving 120 people the drug and 100 people a placebo.

A control group of 80 people who were given no treatment. The number in eachgroup who showed improvement appears in the table:

• *Allergy drug. Placebo control. Total

-Improvement: 65. 42. 31. ?

-No Improvement: 55. 58. 49. ?

-Totals. : ? ? ? ?

1.Fill in all totals in the table.

2.What is the probability that a randomly selected person in the study was given either the drug or the placebo?

3.What is the probability that a randomly selected person in the study either improved or did not improve?

4.What is the probability that a randomly selected person either was given the drug or improved?

5.What is the probability that a randomly selected person was given the drug and improved?

The answers should fill in the excels