Question

unit 4 - mean, median and mode, and
question 31, 7.4.31
a new drug is being tested that is supposed to lower blood pressure. this drug was given to 200 people and the results are as follows.
lower blood pressure 18
higher blood pressure 28
blood pressure not changed 154
if a person is testing this drug, what is the probability that their blood pressure will be higher?
the probability is . (type a whole number or a simplified fraction.)

Explanation:

Step1: Recall probability formula

Probability $P(A)=\frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}}$

Step2: Identify values

The number of people with higher blood - pressure is 28 (favorable outcomes), and the total number of people tested is 200 (total number of outcomes).

Step3: Calculate probability

$P=\frac{28}{200}=\frac{7}{50}$

Answer:

$\frac{7}{50}$