Using Probability Practice
Shauna Keys is recording answers for Ashton Keys.
This assessment was assigned 0 points by Paiton Larson. Once taken, the actual score will be used instead.
Suppose you spin the spinner once. Find the probability.
A circle is divided equally into eight sections.· Two of the sections are labeled with an upper B.
· One of the sections is labeled with an upper G.
· One of the sections is labeled with an upper Y.
· Four of the sections are labeled with an upper R.
· An arrow originating from the center of the circle is pointing at one of the sections with an upper R.
1. P(yellow) (1 point)
one-eighth
start fraction 1 over 6 end fraction
one-fourth
one-half
Suppose you spin the spinner once. Find the probability.
A circle is divided equally into eight sections.· Two of the sections are labeled with an upper B.
· One of the sections is labeled with an upper G.
· One of the sections is labeled with an upper Y.
· Four of the sections are labeled with an upper R.
· An arrow originating from the center of the circle is pointing at one of the sections with an upper R.
2. P(red or blue) (1 point)
0
one-fourth
one-half
start fraction 3 over 4 end fraction
Drink Survey
Drink
Number of Shoppers Who Preferred It
A
10
B
15
C
7
D
3
E
6
3. What is the probability that 1 shopper, selected at random, preferred neither Drink E nor Drink C? (1 point)
thirty-five over forty-one
thirteen over forty-one
twenty-eight over forty-one
thirteen over twenty-eight
4. A farmer examines a sample of 25 cartons of eggs and finds that 3 contain cracked eggs. What is the best prediction of the number of cartons with cracked eggs in a delivery with 500 cartons? (1 point)
6
12
60
120
5. A coin is tossed. If heads appears, a spinner that can land on any number from 1 to 4 is spun. If tails appears, a second coin is tossed instead of spinning the spinner. What are the possible outcomes? (1 point)
H1 H2 H3 H4
H1 H2 H3
H1 H2 H3 H4 TH TT
HH HT
6. A lunch menu has 4 different sandwiches, 2 different soups, and 5 different drinks. How many different lunches consisting of a sandwich, a soup, and a drink can you choose? (1 point)
10
11
40
13
7. If the spinner is spun twice, what is the probability that the spinner will stop on a consonant and then again on a consonant?
The spinner is a circle divided into 6 equal sections. The sections are labeled L U Z O E and I. (1 point)
two-ninths
start fraction 1 over 3 end fraction
start fraction 1 over 6 end fraction
one-ninth
8. A box contains 4 yellow tiles, 6 green tiles, and 10 purple tiles. Without looking, you draw out a tile and then draw out a second tile without returning the first tile.
Find P(purple, then purple).
(1 point)
nine over thirty-eight
one-fourth
three-hundredths
three over nineteen
9. In how many different ways can the following positions be chosen from the 18-member math team?
president, vice president, and treasurer
(1 point)
4,080
306
5,814
4,896
10. In Mr. Tarkiainen’s history class, each student chooses two of the topics listed in the chart above for their papers. How many different pairs can Juliana choose?
A chart with 2 columns is shown.The first column is titled Year. The second column is titled Invention.
Row 1: 1807 Steamboat
Row 2: 1825 Photography
Row 3: 1837 Telegraph
Row 4: 1846 Sewing Machine
Row 5: 1869 Hydroelectric power
Row 6: 1876 Telephone
Row 7: 1879 light bulb
Row 8: 1888 Rabies Vaccine
Row 9: 1890 Diesel Engine
Row 10: 1897 Airplane
(1 point)
90
10
45
30
11. Below are the results of tossing a number cube 10 times. Find the experimental probability of tossing 4.
2 6 3 5 4 4 1 2 4 3 (1 point)
start fraction 3 over 10 end fraction
start fraction 1 over 6 end fraction
start fraction 1 over 5 end fraction
two-thirds
12. A multiple choice test has 5 questions each with 5 possible answers. Find the probability of answering all the questions correctly by guessing randomly. (1 point)
one over three-thousand-one-hundred-twenty-five
one over twenty-five
one over-six-hundred-twenty-five
one over one-hundred-twenty-five
13. Eva wants to know the probability of tossing “heads” at least three times out of five. She used the random number table to simulate flipping a coin. She assigned odd digits to represent “heads” and even digits, including zero, to represent “tails.”
32766 53855 34591 27732
47406 31022 25144 72662
03087 35521 26658 81704
56212 72345 44019 65311
Use the table to find P(“heads” at least 3 out of 5 times).
(1 point)
three-eighths
seven-eighths
five-sixteenths
thirteen-sixteenths
© Connections Education LLC.
1. one-eighth
2. one-half
3. twenty-eight over forty-one
4. 12
5. H1 H2 H3 H4 TH TT
6. 40
7. one-ninth
8. three over nineteen
9. 4,080
10. 45
11. start fraction 3 over 10 end fraction
12. one over three-thousand-one-hundred-twenty-five
13. thirteen-sixteenths
1. The probability of getting a yellow section is one-fourth.
2. The probability of getting either a red or blue section is one-half.
3. The probability that 1 shopper, selected at random, preferred neither Drink E nor Drink C is twenty-eight over forty-one.
4. The best prediction of the number of cartons with cracked eggs in a delivery of 500 cartons is 60.
5. The possible outcomes are H1, H2, H3, H4, H1, H2, H3, H1, H2, H3, H4, TH, and TT.
6. The number of different lunches consisting of a sandwich, a soup, and a drink that can be chosen is 40.
7. The probability that the spinner will stop on a consonant and then again on a consonant, when the spinner is spun twice, is one-ninth.
8. The probability of drawing a purple tile, and then drawing another purple tile without returning the first tile, is three over nineteen.
9. The number of different ways the positions of president, vice president, and treasurer can be chosen from the 18-member math team is 4,896.
10. The number of different pairs that Juliana can choose from the given chart is 45.
11. The experimental probability of tossing 4 on a number cube, based on the given results, is three-tenths.
12. The probability of answering all the questions correctly by guessing randomly on a multiple choice test with 5 questions and 5 possible answers each is one over three-hundred-twenty-five.
13. The probability of tossing "heads" at least three times out of five, based on the given random number table, is thirteen-sixteenths.