It's probably Penny

Lisa and her class learn about probability.

Main Author:	Leedy, Loreen.
Format:	Books Print Book
Language:	English
Published:	New York : H. Holt, c2007.
Edition:	1st ed.
Subjects:	Probabilities > Juvenile nonfiction.

Summary:	Lisa and her class learn about probability.
Physical Description:	[32] p. : col. ill. ; 29 cm.
Awards:	A Junior Library Guild selection
ISBN:	9780805073898 (reinforced) : 0805073892 (reinforced) : 9781428739765 (BWI bdg.) 1428739769 (BWI bdg.)
Author Notes:	Loren Leedy is a children's author and illustrator. She was born in Wilmington, Delaware in 1959, and majored in art in college. She began making clay jewelry and chess sets out of whimsical animals, and eventually turned them into book characters. Her first published work was A Number of Dragons, in 1985. She has written and illustrated nearly 40 books since then. Her titles include: Missing Math: a Number Mystery, My Teacher is a Dinosaur, Seeing Symmetry, The Shocking Truth about Energy, Crazy Like a Fox: a Simile Story, Fraction Action, Blast off to Earth, and Postcards from Pluto. (Bowker Author Biography)