Math 7 Ext SOL Mini Quiz 3: Measurement & Geometry/Statistics

Which statement describes the transformations applied to figure MNPQ that resulted in the figure M'N'P'Q'?

• A. A translation left 1 and up 5 then a reflection over the y-axis.

• B. A reflection over the y-axis then a translation left 1 and up 5.

• C. A reflection over the x-axis then a translation left 5 and up 1.

• D. A translation left 5 and up 1 then a reflection over the x-axis.

The sides of ΔABC measure 8in, 15in, and 17in. The sides of ΔPQR measure 10in, 24in, and 26in. Select the true statement.

• Only ΔABC is a right triangle.

• Only ΔPQR is a right triangle.

• Both ΔABC and ΔPQR are right triangles.

• Neither ΔABC nor ΔPQR are right triangles.

A jar contains 2 red, 5 green, 2 blue and 6 yellow marbles. A marble is chosen at random from the jar. After replacing it, a second marble is chosen. What is the probability of choosing a green marble and then a yellow marble?

Shaquan flipped a coin and rolled a fair six-sided number cube. If he wanted to know the probability of the coin landing on tails and the number cube landing on a number greater than 4, which statement would help him find his answer? This is an example of--

At the carnival there is a game that has a pool of rubber ducks that each have a circle painted on the bottom. There are 10 ducks with blue circles, 10 ducks with red circles, and 5 ducks with purple circles painted on the bottom. Each player has 2 options:

• Option 1: Grab a floating duck from the pool, keep it, then grab a second duck.

• Option 2: Grab a floating duck from the pool, return it, then grab a second duck. Therese is playing the game and needs to grab a duck with a purple circle on the bottom to win. Which of the following is true?

• A Therese should use option 1 because the probability of option 1 is greater than the probability for option 2. Option 1 are dependent events.

• B Therese should use option 2 because the probability of option 2 is greater than the probability of option 1. Option 2 are dependent events.

• C Therese should use option 1 because the probability of option 1 is greater than the probability for option 2. Option 1 are independent events.

• D Therese should use option 2 because the probability of option 2 is greater than the probability of option 1. Option 2 are independent events.

Which of the following questions would result in collecting data that could be displayed in a boxplot?

• What is your favorite genre of books to read?

• What is your preferred mode of transportation?

• How does your time spent exercising impact your weight?

• How many times do you open social media apps each day?

Our class is planning a pizza party. Think about what data is needed to answer the formulated question. How can we decide what types of pizza to order?

• The distance from various pizza restaurants

• The size of the pizza

• The favorite pizza toppings of our class

• The number of pizzas needed

A school cafeteria wants to understand how the variety of lunch options affects student satisfaction, so they ask all students to rate their satisfaction with the current menu. How might students not accurately reporting their satisfaction levels affect the results of the survey?

• It makes the average satisfaction level seem lower than it actually is.

• It introduces errors in the collected data.

• It makes the average satisfaction level seem higher than it actually is.

• It has no impact on the survey’s accuracy.

Ms. Harris recorded how many eggs her chickens laid each day and made a boxplot to examine the data. What is the median number of eggs laid?

• 3

• 5

• 6

• 8

A local library collects data on the ages of people who attend their book club meetings. The results for a recent meeting are shown in the boxplot. On Tuesday, an 85-year-old attended the book club meeting. How would this new data point affect the shape and spread of the boxplot?

• The boxplot will become narrower with no change in the spread.

• The spread of the boxplot will increase but the shape will remain the same.

• The spread of the boxplot will decrease but the spread will remain the same.

• The median line will shift but the overall shape and spread of the boxplot will remain the same.