In a survey, 70% of people like chocolate. If 10 people are surveyed, what is the expected number of people who like chocolate?
Practice Questions
1 question
Q1
In a survey, 70% of people like chocolate. If 10 people are surveyed, what is the expected number of people who like chocolate?
5
7
8
6
Expected number = 10 * 0.7 = 7.
Questions & Step-by-step Solutions
1 item
Q
Q: In a survey, 70% of people like chocolate. If 10 people are surveyed, what is the expected number of people who like chocolate?
Solution: Expected number = 10 * 0.7 = 7.
Steps: 5
Step 1: Understand that 70% means 0.7 when converted to a decimal.
Step 2: Know that you are surveying 10 people.
Step 3: To find the expected number of people who like chocolate, multiply the total number of people (10) by the percentage of people who like chocolate (0.7).
Step 4: Calculate 10 * 0.7, which equals 7.
Step 5: Conclude that the expected number of people who like chocolate is 7.
