College Students Tested to See If How Well You Know

Multiple Choice

College students tested to see if how well you know a person affects your ability to detect a lie from that person. To do this, they came up with 10 statements about a person in their group. Five of these statements were true and five were False. The group tried to make up statements that no-body (not even close friends) would know if they were true or False. The students then presented these statements to people that fit in three groups: close friends, acquaintances, and complete strangers and counted how many statements each person correctly identified as true or False. A summary of the results are as follows.
-A null distribution was generated for this example and is shown. What is the shape of this distribution?

A) Normal
B) Symmetric
C) Left skewed
D) Right skewed