One hundred students are shown an eight-digit number on a piece of cardboard for three seconds and are asked to then recite the number from memory. The process is repeated until the student accurately recites the
Entire number from memory. The following histogram presents the number of trials it took each student to
Memorize the number. How many students memorized the number in three trials or less?
A) 19
B) 24
C) 81
D) 2

Question

One hundred students are shown an eight-digit number on a piece of cardboard for three seconds and are asked to then recite the number from memory. The process is repeated until the student accurately recites the
Entire number from memory. The following histogram presents the number of trials it took each student to
Memorize the number.  How many students memorized the number in three trials or less?
A) 19 
B) 24 
C) 81 
D) 2

Quizplus · Accepted Answer

Look at the histogram and count the number of bars that represent three or fewer trials. There are 19 bars, so 19 students memorized the number in three or fewer trials.

One Hundred Students Are Shown an Eight-Digit Number on a Piece