BIOLOGY 6 TAKE HOME LAB EXAM Spring 2018 NAME: GROUP NAMES: r the following ques
ID: 270787 • Letter: B
Question
BIOLOGY 6 TAKE HOME LAB EXAM Spring 2018 NAME: GROUP NAMES: r the following questions by placing your answer in the blank next to the question. BUT!!! e sure to show your work. Make sure all fractions are reduced to their lowest values. . One point: You are at a craps table,rolling the two dice. What is the probability that you will rol an even number with those two dice? One point: A bag contains 5 blue marbles, 3 red marbles and 2 green marbles. You reach into the bag and select a marble and note its color. You place the marble back. You select a second marble and note its color and place it back. You pick a marble for the 3rd time and note its color. What are the chances of selecting three marbles NOT of the same color? 2.
Explanation / Answer
ANSWER 1
Rolling one dice = 6 possibilities
Rolling two die = 36 possibilities
Number of the 36 possibilities that gives an even number = 18
Probability of rolling an even number with those two die = 18/36
ANSWER 2
Bag contains:
5 Blue Marbles
3 Red Marbles
2 Green Marbles
Probability of all 3 marbles being blue = 5*4*3/10/9/8 = 10/120
Probability of all 3 marbles being red = 3*2*1/10/9/8 = 1/120
Probability of all 3 marbles being green = 0
Probability of all 3 marbles NOT being of the same colour = 1 - (10/120 + 1/120) = 1 - 11/120 = 109/120
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.