Untitled Quiz

Corie hit 5 homeruns at batting practice out of 20 pitches thrown. What is the experimental probability that Corie will hit a homerun at batting practice?

Maria tossed a coin three times. She wrote a list of her possible outcomes. How many outcomes on her list had at least one Tail?

Barak asked 50 students which type of flower they liked best. The results are displayed in the pie chart. If Barak asked 200 students which flower they liked best, how many students would you predict would choose tulips?

You roll a number cube two times. Which of the theoretical probabilities are accurate? Circle all that apply.

Six people are running a race. In how many different ways can they finish first and second?

Kyle has a lock combination with three digits. Every number in the combination must be a 0-4. What is the probability his combination is 000?

Yolanda wants to know which seventh grade student will win the class election. Which sample will give her the best chance to make an accurate prediction?

Fifty students at school were surveyed about their favorite type of music. The data is below. Which inference is the weakest?

The five-number summary and mean for two data sets is shown below. Each data set has 15 values. Which data set has the greatest mean absolute deviation?

The scores for tests taken by Kelli and Robert are shown below. Each test is worth 20 points. Which statement best compares their median scores?

Carla had a deck of cards numbered 1 to 20. She randomly chose a card from the deck. Find each probability for the card she chose.

There are 6 red, 9 blue and 5 green marbles in a bag. Samantha reaches into the bag and chooses one marble. Which color has a chance of being chosen? Explain how you know your answer is correct.

Javier wanted to estimate the number of mustangs in a wild herd. He tagged 8 mustangs and sent them back to their herd. The next month he spotted 2 tagged mustangs out of the 15 mustangs spotted. Estimate the size of the mustang population. Show all work necessary to justify your answer.

Quinn rolled a regular number cube 42 times. How many times would you predict he rolled a 6? Explain your reasoning.

The following histogram shows the number of homeruns hit by students at a baseball camp.

You have three cards numbered 1, 2 and 3 and three cards labeled A, B and C. You choose one card from each deck. How many different pairs of cards are possible? Show a tree diagram, list or table to support your answer.

Tami takes a multiple choice test. It has five questions. There are three possible answers for each question. If Tami guesses on each question, what is the probability she answers them all correctly?

Shaun spins a spinner with the numbers 1 – 8, each equally likely. She then rolls a number cube. What is the probability Shaun spins a 5 and rolls a 5?

There are two school activities Friday night. One is a basketball game and the other is a talent show. Isla wants to know which activity more people will attend. She decides to ask her 20 closest friends. She decides most people will be going to the talent show based on their responses. Is her prediction accurate based on the sample surveyed? Explain your reaoning.

Two different random samples were used to determine students' favorite park in town. The results are below. Make at least two inferences.

Use the data below to answer numbers 14 – 20. The data shows the number of minutes it took students to run a mile at the start of the year and at the end of the year.

Charlie said the means differed by 1.5 minutes. Is his comparison accurate? Explain your reasoning.

Find the five-number summary of each data set.

Find the interquartile range of each data set.

Find the mean absolute deviation of each data set.

Write one sentence comparing a measure of variability between the two data sets.

Javier interviewed a random sample of 200 students at his school. He asked each student what type of movie they preferred to watch and what one snack they preferred to eat with a movie. The results are below. There are 600 students in Javier's school. Based on the data Javier gathered, what is the probability the next student Javier asks will prefer an action movie and a snack of popcorn?