Math Probability and Or

Lynette made the following diagram. Which list shows all the possible outcomes, according to her tree diagram?

• C, O, G

• A, B, C, O, G

• AB, COG

• AC, AO, AG, BC, BO, BG

Tech Group Corporation accepts 1 of every 20 applicants. What is the probability of NOT being accepted for a job at Tech Group?

• 1%

• 5%

• 19%

• 95%

At Mr. Gonzalez's convenience store, the probability of a student purchasing a cola is 11/20. About how many students would purchase a cola if 280 students come in during one day?

• 130 students

• 178 students

• 126 students

• 154 students

A bag contains 10 green tiles, 15 red tiles, and 25 blue tiles. Jane randomly draws a tile, records the color and replaces the tile. If she does this 75 times, how many times should she expect to draw a green tile?

• 15

• 25

• 18

• Not here

If a coin is tossed 72 times, how many times do you expect to toss a head?

• 36

• 72

• 24

• 12

A numbered cube labeled 1-6 is tossed two times. What is the probability of tossing a 2 on the first time and then tossing an odd number the second time?

• 1/6

• 1/12

• 3/6

• 1/2

A jar has 24 green lollipops, 13 blue lollipops, 28 red lollipops and 15 purple lollipops. If Michelle picks two lollipops at random, what is the probability that Michelle will select a red lollipop and then a purple lollipop?

• 21/320

• 28/80

• 1/2

• 15/80

A bag contains 6 red, 5 blue and 4 yellow marbles. Two marbles are drawn, but the first marble drawn is not replaced. What is the probability of selecting a red marble and then a blue marble?

• 2/15

• 6/15

• 1/7

• 5/15

Jeremiah has a coin and a 6-sided die. What is the probability of Jeremiah flipping heads on a coin and rolling a 5 on a die?

• 1/2

• 1/6

• 2/12

• 1/12

A box contains 20 balls: 10 are yellow, 6 are red and 4 are black. What is the probability of selecting a yellow ball and then a red ball?

• 1/2

• 3/10

• 3/20

• 10/20