For a Particular Diamond Mine, 80% of the Diamonds Fail

question 42

Multiple Choice

For a particular diamond mine, 80% of the diamonds fail to qualify as "gemstone grade". A random sample of 94 diamonds is analyzed. Find the probability that the proportion of the sample diamonds That fail to qualify as gemstone grade is between 0.76 and 0.83.

• A) 0.6013
• B) 0.1660
• C) 0.8340
• D) 0.7673