A teacher provides pizza for his class if they earn an a average on any test the proability of the class getting an A average on one of his test is 8%
What is the probability that the class will not earn a pizza for the firt seven tests?
Answer is 0.5578
To find the probability that the class will not earn a pizza for the first seven tests, we need to find the probability of not getting an A average on each test and then multiply them together.
Given that the probability of getting an A average on one test is 8%, the probability of not getting an A average on one test is 100% - 8% = 92% or 0.92.
To find the probability for seven tests, we multiply the probabilities together:
P(not getting an A average on the first test) * P(not getting an A average on the second test) * ... * P(not getting an A average on the seventh test)
0.92 * 0.92 * 0.92 * 0.92 * 0.92 * 0.92 * 0.92 = 0.5578
Therefore, the probability that the class will not earn a pizza for the first seven tests is 0.5578 or 55.78%.
Excuse me, but WHAT is the School Subject? Please identify that clearly so the right teacher reads your post! I do NOT do math!
Sra