The table shows the drink preferences of 50 shoppers at the mall. What is the probability that one shopper, selected at random for 50 surveyed, preferred either Drink B or Drink A
number of A / total + number of B / total
answer: 3/10
7+8=15 out of the people surveyed = 15/50 15 / 5 = 3 and 50 / 5 = 10 = 3/10.
To calculate the probability that one shopper, selected at random from the 50 surveyed, preferred either Drink B or Drink A, you need to determine the number of shoppers who preferred Drink B or Drink A, and then divide it by the total number of shoppers.
Unfortunately, the table of drink preferences of the shoppers is not provided. Without the specific data, it is not possible to calculate the probability. If you can provide the number of shoppers who preferred Drink B, the number of shoppers who preferred Drink A, and the total number of shoppers surveyed, I can assist you with the calculation.
To find the probability that one shopper, selected at random from the 50 surveyed, preferred either Drink B or Drink A, you need to know the number of shoppers who preferred each drink.
If you have the number of shoppers who preferred Drink A and the number of shoppers who preferred Drink B, you can use the formula:
Probability = (Number of shoppers who preferred Drink A or Drink B) / (Total number of shoppers)
Let's assume you have the following information from the table:
Number of shoppers who preferred Drink A = 20
Number of shoppers who preferred Drink B = 15
Total number of shoppers surveyed = 50
Now, you can substitute these values into the formula:
Probability = (20 + 15) / 50
Probability = 35 / 50
To simplify the probability, you can divide both the numerator and denominator by their greatest common divisor, which is 5 in this case:
Probability = 7 / 10
Therefore, the probability that one shopper, selected at random from the 50 surveyed, preferred either Drink B or Drink A is 7/10 or 0.7.