Probability 1
Regan has a coin and a 6 sided die. Wha is the likelihood that Regan will flip a coin that lands on heads, then roll a die and get an even number. Be sure to simplify.
1/4
Penny packed clothes for a weekend out of town. She packed 3 different shirts, 3 pairs of pants, and 2 pairs of sneakers in her suitcase. How many uniques outfits can Penny create with the clothes in her suitcase?
18 outfits
A spinner with numbers 1-4 will be spun twice. What is the probability of spinning an odd number both times?
1/4
A container hold 3 red pens, 6 black pens, 4 purple pens, and 2 blue pens. How many possible outcomes are there?
15
A container hold 3 red pens, 6 black pens, 4 purple pens, and 2 blue pens. What is the P(not blue)?
13/15
Is this an example of an INDEPENDENT or DEPENDENT event?
A container has 7 green buttons, 3 yellow buttons, and 4 blue buttons. You reach in and randomly draw out a blue button. You KEEP the blue button and reach in again to draw out a second blue marble.
Dependent
The probability that a person in a certain town has brown eyes is 2 out of 5. A survey of 450 people from that same town was taken. How many people would be expected to have brown eyes?
180
Is this an example of an INDEPENDENT or DEPENDENT event?
You choose 1 of 10 marbles. Then you randomly choose one of the REMAINING 9 marbles?
Dependent
Which describes the probability of tossing a number less than 6 on a number cube with faces labeled 1-6?
A. impossible
B. unlikely
C. likely
D. certain
C. likely
Allison has tossed a coin 120 times. The coin landed on heads 54 times.
What is the theoretical probability that the coin will land on heads on the next toss?
1/2
A container holds 3 red marbles, 6 black marbles, 4 purple marbles, and 2 blue marbles. Find the probability. What is the P(red, purple) WITH REPLACEMENT?
4/75
A lightbulb manufacturer found that out of 200 lightbulbs, 15 were defective. How many lightbulbs should the manufacturer expect to be defective out of 2,400 lightbulbs?
180
A candy bowl has 4 chocolate bars, 3 packs of gummies, and 3 pieces of gum. What is the probability of randomly selecting a chocolate bar, putting it back, and randomly selecting another chocolate bar?
4/25
Allison has tossed a coin 120 times. The coin landed on heads 54 times.
What is the experimental probability that the coin will land on heads on the next toss?
9/20
There are 6 forwards and 4 guards on the girls basketball team. Coach B will randomly choose two captains for the next game.
What is the probability that both captains will be forwards?
1/3
Sarah has been given 10 Skittles. 4 are red, 4 are yellow, and 2 are purple. What is the likelihood of Sarah randomly selecting a red Skittle, eat it, and randomly select a second red Skittle?
2/15
The cafeteria staff made sandwiches. Each sandwich had either rye or white bread, either ham or turkey, and either cheese or no cheese. The staff made an equal number of each type of sandwich. Without looking, Mary will choose a sandwich. What are the chances that Mary will get a sandwich with cheese?
1/2
A vase has 7 purple flowers, 9 yellow flowers, & 12 pink flowers. What is the probability of pulling a pink flower from the vase? Write your answer as a percent rounded to the nearest whole number.
43%
Each letter of the word BANANA is written on a card. Find the probability if you pick two cards without replacing the first.
P(B, then N)
1/15
There were 6 purple socks and 4 orange socks in a drawer. Scarlett picked one sock without looking and then picked another without looking (not replacing it).What is the probability that she picked 2 purple socks?
1/3
Jack wanted to check and see how many people wrote their science homework answers in complete sentences. After checking ten students' papers, he noticed 6 had written in complete sentences and 4 had not. What is the relative frequency (exp. prob.) for students writing in complete sentences?
.6
The were six strawberry jams and two grape jams on a table in a diner. What is the probability of randomly selecting a strawberry jam?
3/4
A P.E. class has 20 students. Two of the 20 students are twins. What is the probability of randomly selecting one twin to be captain(and not replacing her when she is removed from the group), and then randomly selecting the other twin to be the other captain?
1/190
Colby flipped a fair coin three times. What is the probability, as a percent, of Colby getting HEADS every time he flipped the coin?
12.5%
Diana, Drew, Austin, & Ansley sit at a table in math class. What is the theoretical probability of Ansley being the first student at her table two days in a row?
1/16