Use the following information for questions:
A student doing an internship at a large research firm collected the following data, representing all of the studies the firm had conducted over the past 3 years.
-Suppose one study is to be randomly selected from all studies conducted over the past 3 years by this large research firm. What is the probability that this study used randomization?
A) 0.1167
B) 0.2333
C) 0.26
D) 0.3111

Question

Use the following information for questions:
 A student doing an internship at a large research firm collected the following data, representing all of the studies the firm had conducted over the past 3 years. 
-Suppose one study is to be randomly selected from all studies conducted over the past 3 years by this large research firm. What is the probability that this study used randomization?
A) 0.1167 
B) 0.2333 
C) 0.26 
D) 0.3111

Quizplus · Accepted Answer

The probability that a study used randomization is calculated by dividing the number of studies that used randomization by the total number of studies. The given probability of 0.2333 suggests that this is the correct proportion.

Use the Following Information for Questions