Pre AP Geometry Unit 1 – Measurement in Data

What is the shape of the Data Set?

What data value is the upper quartile (Q3)?

What is an outlier?

The salary of the employees in the office were $15,000; $18,000; $16,000; $14,000; $90,000; and $17,000.  What is the best measure of the central tendency of the salaries?

Based on the spinner above, the spinner is spun once. Give the number of favorable outcomes for spinning B and C?

What is the probability of either event occurring when you spin a spinner with numbers 1-4. Event A: spinning an odd number, Event B: spinning a 4?

 A student placed 50 mealworms in the middle of an aquarium containing a light, a cardboard tube and a water dish.  He waited five minutes and then recorded the data for the first trial in the table above.  The student repeated this procedure two more times, and recorded the results.  Read the results of all three trials.  Which inference could you make about mealworms based on the results.

Describe the shape of Daniel’s data.

Which statement is best supported by the graph?

Which description best fits the overall shape of the data?

What does the red arrow represent in the dot plot?

Which of the following lists all parts of the five point summary?

What is the probability of NOT spinning green on this spinner?

If you draw one card from a standard deck, what is the probability of drawing a 5 or a diamond?

Find the probability that a randomly chosen point in the figure lies in the shaded region.

Francis surveyed a random sample of 70 students at Franklin High School about their favorite season. Of the students surveyed, 18 chose fall as their favorite season. There are 1816 students at Franklin High School.

Based on the data, what is the most reasonable estimate for the number of students at Franklin High School whose favorite season is fall?

A group of randomly selected members of Mothers’ Club were asked how many kids they have. The table below shows the results of the survey. There are 120  members in Mothers’ Club.

Based on the data, what is the most reasonable estimate for the number of Mothers’ Club members who have fewer than 2 kids?

A high school has a policy that students’ phones must be kept away during class. A principal used the school roster to poll a random sample of 50 students, and only 10% said that they ever had their phone out during class. The next day, the principal observed classrooms and noticed that approximately 25% of students had their phone out at some point during class.

Which of these is the most concerning potential source of bias in the principal’s poll?

An airline wants to survey customers about their overall satisfaction. They take a random sample of 1000 customers who have flown in the past month and email them a survey. The email also offers those who complete the survey a $25 gift card that can be used almost anywhere.

Which of these is the best example of nonresponse bias?