Statistics and Probability Unit Review

Unit 4 Review--Data and Probability

Multiple Choice

What is the MEAN for this data?

• 80
• 1040
• 13
• 81

Multiple Choice

The median is

• The middle score
•  Scores added & divided by the number of scores
• The most frequent score
• The middle when in order

Multiple Choice

The mode is

• The middle score
•  Scores added & divided by the number of scores
• The most frequent score
• The middle when in order

Multiple Choice

What is the MODE of this data?

• 90
• 85, 90, and 95
• 85 and 95
• None

Multiple Choice

How many students received a score of 94%?

• 94

• 4

• 1

• 2

Multiple Choice

How many students received a score of 94%? 

• 94
• 4
• 1
• 2

Multiple Choice

What is the interquartile range?

• 4
• 6
• 2
• 8

Multiple Choice

Which restaurant has a higher median wait time?

• Lucy's Steakhouse
• Gary's Grill
• They are the same

Multiple Choice

What is the median?

• 62
• 58
• 66
• 60

Multiple Choice

What is the maximum value?

• 58
• 66
• 64
• 60

Multiple Choice

What value is the lower quartile?

• 66
• 58
• 60
• 64

Multiple Choice

Find the mean of the numbers below:

20, 30, 24, 32

• 26.5

• 27.5

• 27

• 27.5

Fill in the Blank

Find the Mean Absolute deviation of the following data: 4, 5, 5, 4

Fill in the Blank

Find the Mean Absolute deviation of the following data: 4, 5, 5, 4

Multiple Choice

Which of the following situations would you want to collect a sample rather than surveying the entire population?

• the median price of homes in Ohio

• how many students in the class like mushrooms on their pizza

• how many students have more than one pet

• the typical number of home runs for each player on the baseball team

Multiple Choice

A beverage company wants to see if people in the United States like their new logo. Which of the following represents the population?

• 2,000 people ages 5-13

• A selection of logo artists

• A selection of shoppers from different states

• all the people in the United States

Multiple Choice

A student wants to know which type of of pizza high school students perfer. Which of the following options is a good, representative sample of the population?

• Asking all the 10th graders in the school

• Asking 20 students from each grade level

• Asking the school principal which type of pizza he perfers

• Asking the students who walk to school

Multiple Select

What is the probability of pulling 5 from this group of without looking. Check all correct answers.

• $$\frac{4}{8}$$  

• $$\frac{1}{2}$$  

• Equally Likely

• Likely

Multiple Select

What is the probability of pulling 2 striped marbles from the bag without looking. Check all correct answers.

• $$\frac{2}{9}$$  

• $$\frac{0}{9}$$  

• Unlikely

• Impossible

Multiple Choice

How many different ways can we toss a head, and roll a 6?

• 1 times

• 2 times

• 12 times

• 6 times

Multiple Choice

How many possible outcomes or combinations can we get if we toss a coin, and roll a number cube?

• 6 total outcomes

• 8 total outcomes

• 14 total outcomes

• 12 total outcomes

Common Events in Probability

• Flipping a Coin [or multiple coins]

• Spinning a Spinner

• Selecting a card from a Deck of playing cards

• pulling a marble from a bag

Multiple Choice

What are ALL the possible outcomes of spinning this spinner?

• { Red, Yellow, Blue}

• {Yellow, Blue, Green}

• {Red, Yellow, Blue, Purple}

• {Red, Yellow, Blue, Green}

Sample Space

• This is a list of ALL possible outcomes in a probability event.

• We can do this by:

• making lists, tables, and tree diagrams

Multiple Choice

Which of the following describes theoretical probability?

• a. Perform an experiment to determine the probability

• a. Determining the expected probability of an event

• a. Perform a simulation and count the number of possible outcomes

• a. Use trials to count the number of desired outcomes

Multiple Choice

Experimental Probability is:

• What Will happen 
• What actually happens
• What should happen
• What I think Happens

Multiple Choice

What is Theoretical Probability?

• The ratio of favorable outcomes to the total number of possible outcomes
• The ratio of favorable outcomes to the total number of trials in an experiment
• In probability, a controlled, repeated process (such as repeatedly tossing a coin).
• A single possible result.

Multiple Choice

If you spin two times, what is the probability of landing on yellow, then blue?

• $$\frac{1}{6}$$

• $$\frac{1}{18}$$

• $$\frac{1}{36}$$

• $$\frac{1}{2}$$

Multiple Choice

Rolling a number cube then flipping a coin are __________ events.

• Independent

• Dependent

Multiple Choice

Rolling a number cube then flipping a coin are __________ events.

• Independent

• Dependent