Math 7 Statistics

Find the median.

Find the mean price of golf clubs.

Which box and whisker plot has a median of 50?

Employees at a law firm keep track of how many hours the work each week: {44, 48, 44, 40, 59}. Calculate the MAD.

A pizza shop surveyed a random group of customers to determine their favorite pizza topping. Results are shown below. Out of 400 people, how many would you expect to say their favorite topping is sausage?

Dr. Dre is a dentist. He needs to report on the number of cavities that his patients have. Find the mean, median, and mode. 1, 0, 1, 5, 0, 3, 4, 2.

Which measure of center (mean, median, mode) best describes a set of data when there are no outliers?

Find Q3 for the following data set: 24, 22, 30, 18, 29, 38, 33, 17, 22, 25, 16, 41

What percent of the customers prefer veggie pizza?

What percentage of the data is between 90 and 140?

Determine which measure of center best represents the data. Justify your selection and find that measure. The cost of a cupcake at 9 different bakeries: {3.50, 6, 3.50, 4, 3, 3.50, 3.50, 8, 3.50}

What is the range?

A student wants to know which type of pizza the students at his high school prefer. Which option would give a unbiased, representative sample:

Mackenna has taken four science tests and scored a 92, 78, 89 and 95. She has one more test and wants to finish the marking period with a 90%. What does she have to get on the fifth test to finish with a 90?

What percent of the data is below 17?

Which city has a greater range?

Find the Mean Absolute Deviation: 10, 9, 3, 8, 10.

The table shows the average depth of several lakes. Tell which measure of center best describes the data. Then, find the measure.

Which dot plot would have a higher MAD? Explain how you know.

Construct a box and whisker plot for the data: 74, 69, 83, 79, 60, 75, 67, 70

The box-and-whisker plot below shows the number of years of teaching experience that each of 52 teachers has at Northridge Middle School. What is the total number of teachers at Northridge with at least 10 years of experience?

What is the IQR?

Find the Mean Absolute Deviation of the set: 10, 5, 7, 14, 19, 32, 25

Find the five number summary: lower extreme, Q1, median, Q3 and upper extreme.

In the last 5 basketball games, Ryan scored 22, 22, 18, 12, and 21 points. How many points did Ryan score in the next game if his average points per game was 19?

Biased or unbiased? Mr. Sherman wants to know the favorite sport of people at his school so he asks his baseball team.

The superintendent of a large school district is conducting a survey in which teachers are asked how they prefer to make up snow days. Which sample would provide the least bias?

Construct a box and whisker plot: 33, 25, 42, 25, 31, 37, 46, 29, 38

Anna wants to know the average student’s opinion of the tardy policy at her school. Which group of students should she survey in order to achieve the most accurate results?