the snack preferences of 50 shoppers at the mall. what is the probability that one shopper selected at random from 50 surveyed perfered the potato chips or pretzels
Without any additional information, we cannot determine the exact probabilities. We would need to know the number of shoppers who prefer potato chips, the number of shoppers who prefer pretzels, and if there are any shoppers who prefer both. Then we could use that information to calculate the probabilities.
12 for potato chips and 14 for pretzels
In this case, out of the 50 shoppers surveyed, 12 preferred potato chips and 14 preferred pretzels.
So the probability that a shopper selected at random from the 50 surveyed prefers either potato chips or pretzels would be:
P(potato chips or pretzels) = P(potato chips) + P(pretzels) - P(both)
= 12/50 + 14/50 - 0
= 26/50
= 0.52
Therefore, the probability that one shopper selected at random from 50 surveyed preferred the potato chips or pretzels is 0.52 or 52%.
in a fraction
The probability can also be expressed as a fraction:
P(potato chips or pretzels) = 26/50
which simplifies to:
P(potato chips or pretzels) = 13/25
a standard number cube has numbers 1 through 6 what is the probability of rolling a number greater than 4
Out of the six possible outcomes when rolling a standard number cube (1, 2, 3, 4, 5, and 6), three numbers are greater than 4: 5 and 6.
So the probability of rolling a number greater than 4 would be:
P(number greater than 4) = number of favorable outcomes / total number of outcomes
= 2 / 6
= 1 / 3
Therefore, the probability of rolling a number greater than 4 is 1/3 or approximately 0.333.
a number cube is rolled 360 times and the results as the following 41 ones, 54 twos, 62 threes, 74 fours, 35 fives, 95 sixes. what is the experimental probability of rolling a two or a three
To find the experimental probability of rolling a two or a three, we need to add the frequencies of rolling a two and a three, since these are the favorable outcomes in this case.
Frequency of rolling a two = 54
Frequency of rolling a three = 62
So the total frequency of rolling a two or a three would be:
54 + 62 = 116
The total number of rolls was 360, so the experimental probability of rolling a two or a three would be:
experimental probability = frequency of favorable outcomes / total number of outcomes
= 116/360
= 0.3222 (rounded to four decimal places)
Therefore, the experimental probability of rolling a two or a three is approximately 0.3222 or 32.22% (rounded to the nearest hundredth).