Qualitative & Quantitative Reasoning in Simple Events Dry Erase Board Practice

Marcia performs an experiment which she pulls a marble from a bag Marcia performs an experiment which she pulls a marble from a bag. In her experiment, she finds that she is twice as likely to pull a red marble as a blue marble. If Marcia pulls 10 red marbles, how many blue marbles does she pull?

ANSWER 5 blue marbles

ANSWER B

Mildred has a bag of coins Mildred has a bag of coins. The bag contains 10 dimes, 5 nickels, and 1 penny. She randomly selects 1 coin from the bag. What is the probability that Mildred will select a dime?

ANSWER 10 16 = 5 8

Mildred has a bag of coins Mildred has a bag of coins. The bag contains 10 dimes, 5 nickels, and 1 penny. She randomly selects 1 coin from the bag. What is the probability that Mildred will select a penny?

ANSWER 1 16

In Ms. Knight’s class, students place a slip of paper with their name written on it into a box each time they complete a homework assignment. At the end of the grading period, Ms. Knight randomly selects students’ names from the box and awards prizes. The table shows the frequency of 5 students’ names in the box at the end of the first grading period. Which of the following statements is NOT accurate about the data in the table? Sophia’s name is 2.4 times as likely to be selected as Christian’s name. Jackson’s name is more likely to be selected than John’s and Elizabeth’s names combined. Elizabeth’s name is 30% as likely to be selected as John’s name. Christian’s name is the least likely of all names in the box to be selected.

ANSWER D

Layton conducts an experiment throughout the school year to determine the most common answer choice used by teachers at his school on multiple-choice tests. The data he collects is shown in the table. What is the probability of a teacher having C as the correct answer on a multiple-choice test?

ANSWER 60 190 reduces to 6 19 or about 31.6%

Tony performs an experiment with a number cube and records his results in the table below. Which statement about the results of Tony’s experiment is accurate? Tony is ½ as likely to roll a 4 as he is to roll a 1 or a 5 combined. Tony is 75% as likely to roll a 3 as he is to roll a 5. Tony is 90% as likely to roll a 5 as he is to roll a 1. Tony is equally likely to roll a 2 or a 4 combined as he is to roll a 1 or a 6 combined.

ANSWER B