A single, standard number cube is tossed. What is the probability of getting a number greater than 3?
Answer choices
2/3
1/3
1/6
1/2
1/2
A game involves spinning this spinner. What is the probability of the pointer landing on R? (1 point)
Answer choices
1/4
1/2
1/8
3/8
It is not possible to determine the answer without a picture or description of the spinner. Please provide more information.
The table shows the drink preferences of 50 shoppers at the mall. What probability that one shopper, selected at random from the 50 surveyed, preferred either Drink B or Drink A?
Drink Number of shoppers
A 7
B 8
C 10
D 11
E 14
answers choices
8/25
3/10
11/25
7/25
The probability that a shopper selected at random preferred either Drink A or Drink B is:
P(A or B) = P(A) + P(B) - P(A and B)
P(A) = 7/50 (Number of shoppers who preferred Drink A / Total number of shoppers)
P(B) = 8/50 (Number of shoppers who preferred Drink B / Total number of shoppers)
P(A and B) = 0 (None of the shoppers preferred both A and B)
So, P(A or B) = 7/50 + 8/50 - 0 = 15/50 = 3/10
Therefore, the answer is 3/10.
A standard number cube with the numbers 1 through 6 is rolled. Find the probability of rolling a number greater than 5. (1 point)
Answer choices
1/6
1/3
1/4
2/3
The only number greater than 5 on a standard number cube is 6. Since the cube has six sides and each side is equally likely to come up when rolled, the probability of rolling a number greater than 5 is:
1/6
Therefore, the answer is 1/6.
A number cube rolled 360 times and the results are recorded as follows: 41 ones, 54 twos, 62 threes, 75 fours, 33 fives, and 95 sixes. What is the experimental probability of rolling a two or a three?
Answer choices
0.32
0.18
0.07
0.68
The number of times a two or a three was rolled is 54 + 62 = 116.
The total number of rolls was 360.
So, the experimental probability of rolling a two or a three is:
116/360 = 0.3222 (rounded to four decimal places) or approximately 0.32
Therefore, the answer is 0.32.
From a barrel of colored marbles, you randomly select 5 blue, 2 yellow, 3 red, 4 green, and 2 purple marbles. Find the experimental probability of randomly selecting a marble that is not yellow.
Answer choices
9/16
7/8
8/9
3/4