THOMAS J. COBB
Module 1 – Case Assignment
Dr. Alfred Basta
Module 1-Case Assignment
Thomas J. Cobb
1. Suppose you have 4 nickels, 6 dimes, and 4 quarters in your pocket. If you draw a coin randomly from your pocket, what is the probability that:
a. You will draw a nickel? The probability of someone drawing a dime would be 4/11 or 36%.
b. You will draw a dime? The probability of some drawing a nickel would be 6/11 or 54%
c. You will draw a quarter? The probability of someone drawing a quarter would be 4/11 or 36%
2. You are rolling a pair of dice, one red and one green. What is the probability of the following outcomes:
a. The sum of the two numbers you roll from the dice is 11. There are 2 possible outcomes. 5,6/6,5
b. The sum of the two numbers you roll is 6. There are 5 possible outcomes. 1,5/5,1/ 3,3/4,2/2,4
c. The sum of the two numbers you roll is 5. There are 4 possible outcomes. 1,4/4,1 /3,2/2,3
3. A glass jar contains 6 red, 5 green, 8 blue, and 3 yellow marbles. If a single marble is chosen at random from the jar, what is the probability of choosing a red marble? a green marble? a blue marble? a yellow marble?
a. The red marble would have a 6/22 or 27% chance of being drawn.
b. The green marble would have a 5/22 or 23% chance of being drawn.
c. The blue marble would have an 8/22 or 36% chance of being drawn.
d. The yellow marble would have a 3/22 or 14% chance of being drawn.