Answered You can hire a professional tutor to get the answer.
QUESTION
On average, 35 percent of beachcombers bring an umbrella to the beach. Suppose this percentage follows a normal distribution with a standard...
- On average, 35 percent of beachcombers bring an umbrella to the beach. Suppose this percentage follows a normal distribution with a standard deviation of 8 percent.
a. Find the probability that the percent of beachcombers with umbrellas is at least 50 percent.
b. Find the 90th percentile, and express it in a sentence.
