Question

For the population of people who suffer occasionally from migraine

headaches, suppose 50% get some relief from taking Ibuprofen. Suppose we select a random sample of 84 people who suffer from migraines.
The probability that at least 60% of those in our sample will get relief from Ibuprofen is...
A. 0.60
B. 0.97
C. 0.03
D. 0.52

Answer 1

The probability that at least 60% of the sample will get relief from Ibuprofen is 0.03.

Step-by-step explanation:

To find the probability that at least 60% of the sample will get relief from Ibuprofen, we need to calculate the probability of each possible outcome and add them together.

The binomial distribution can be used to calculate these probabilities, where the probability of success is 0.5 and the number of trials is 84. Using a binomial calculator, we find that the probability of getting 60% or more success is approximately 0.03. Therefore, the correct answer is C. 0.03.

Answer 2

The probability is 60% in our sample so we get relief from ibuprofen is 0.60

Step-by-step explanation:

From the given statement as 84 is random sample and 50% got relief from i ibuprofen . The probability at least 60% so

60/100 = 0.60 value