A survey taken by 200 people revealed that 80 like orange juice and 120 dislike it. One person is randomly chosen from this group. What is the chance that the chosen person dislikes orange juice? Write your answer as a ratio in simplest form. *
1 point
80/200
3/5
2/5
120/200
A letter is to be randomly picked from the word WORCESTERSHIRE. Which set of letters have equal chances to be selected? *
1 point
W and T
E and R
S and T
C and E
A six-sided number cube is rolled 40 times and lands on 4 fifteen times and 2 six times. Calculate the experimental probability of landing on a 4. Write your answer in the simplest form of a fraction *
1 point
3/8
15/40
6/40
3/20
You select a marble without looking and then put it back. If you do this 20 times, what is the best prediction possible for the number of times you will pick a purple marble? *
1 point
Captionless Image
12
5
1
17
An experiment involves picking a card from the number cards 1, 3, 5, 7. In equation form. What is the probability model for this experiment?
ƒ (x) = ___________, where x = 1, 3, 5, 7
*
1 point
1/2
4
1
1/4
Suppose the probability of selecting a movie goer who prefers candy instead of popcorn is 50%. Out of 300 movie goers, how many can you expect will prefer candy? *
1 point
50
100
150
75
A spinner has 8 equally sized sections labelled as Blue, Green, Blue, Blue, Blue, Green, Blue, Green. In 200 spins, how many times can you expect to spin on Blue? *
1 point
125
100
150
175
A single coin is tossed 100 times. Heads were observed 40 times. What is the long-run relative frequency of tails? *
1 point
0.40
0.60
An experiment involves picking a card from a selection of cards numbered 10, 20, and 30. In equation form, what is the probability model for this experiment? List the values of x in ascending order. *
2 points
ƒ (x) = 10, where x = 10, 20, 30
ƒ (x) = 30 , where x = 10, 20, 30
ƒ (x) = 1/3, where x = 10, 20, 30
ƒ (x) = 1/3, where x = 30, 20, 10
If the table below represent a probability model based on observed frequencies, what is the value of x? *
1 point
Captionless Image
0.05
0.10
0.01
0.50
Bowls A and B contain a number of white and red balls. Raya repeatedly selected a ball from both bowls and recorded the results in a table. If there are 500 balls in Bowl A, what is the estimated difference in the expected number of red and white balls in Bowl A? *
2 points
Captionless Image
375
125
100
150
What is the probability of rolling an even number on the first roll of a six-sided cube and rolling an odd number on the second roll? *
1 point
1/4
1/2
1
2
A big flower vase has 8 lilies, 9 roses, and 4 daisies. Two flowers are randomly selected without replacement. What is the probability of selecting two lilies? Express the answer in the simplest form of fraction. *
2 points
9/21
2/15
1/3
4/21
A standard deck of 52 cards contains four suits: hearts, diamonds, clubs, and spades. Each suit has 13 cards: ace, 2, 3, 4, 5, 6, 7, 8, 9, 10, jack, queen, king. Three cards are randomly drawn without replacement. Calculate the probability of drawing three heart cards. *
3 points
1.5%
2.3%
1.9%
1.3%
1 answer
1 answer