Chapter 8 Lesson 4

Unit 8 Lesson 4

Pencils, Pens, Notebooks and Calculators ready!!!

Multiple Choice

A chance experiment is:

• an event is a number that tells how likely it is to happen

• outcomes of a chance experiment are random if they are all equally likely to happen

• something you can do over and over again, and you don’t know what will happen each time

• a set of one or more outcomes in a chance experiment

Multiple Choice

Noah will select a letter at random from the word “FLUTE.” Lin will select a letter at random from the word “CLARINET.” Who has the better chance of winning?

• Noah

• Lin

Poll

Lin wants to know if flipping a quarter really does have a probability of  

$$\frac{1}{2}$$  of landing heads up, so she flips a quarter 10 times. It lands heads up 3 times and tails up 7 times. Has she proven that the probability is not  $$\frac{1}{2}$$  ?

• yes

• no

Multiple Choice

A spinner is spun 40 times for a game. Here is a graph showing the fraction of games that are wins under some conditions. Estimate the probability of a spin winning this game based on the graph.

• .60

• .65

• .50

• .70