A gym manager wants to know the average number of days a person goes to the gym each week. Currently, there are 124 gym members. She sent an online survey, and 68 gym members responded. Twenty-five said they go to the gym 1–3 times a week. Nineteen said they work out 4–5 times a week. The rest said they go to the gym every day. Identify the population and the sample.(1 point)
Population:
gym members
Sample:
gym members
Population: gym members
Sample: 68 gym members who responded to the survey
no
Population: gym members
Sample: 68 gym members who responded to the survey and provided their information
A gym manager wants to know the average number of days a person goes to the gym each week. Currently, there are 124 gym members. She sent an online survey, and 68 gym members responded. Twenty-five said they go to the gym 1–3 times a week. Nineteen said they work out 4–5 times a week. The rest said they go to the gym every day. Identify the population and the sample.(1 point)
Population: _ gym members
Sample: _ gym members
Population: 124 gym members
Sample: 68 gym members who responded to the survey
Kendra wants to know the average height of first-year high school students in her town. She randomly picked 25 male and 25 female students from each of the 10 high schools in her town. From the data she collected, she concluded that the average height of first-year high school students in her town is 5 feet, 7 inches. How many students in total were included in her representative sample?(1 point)
students
In her representative sample, there were a total of 500 students included. This is because Kendra randomly picked 25 male and 25 female students from each of the 10 high schools, resulting in a total of 25 + 25 = 50 students from each high school. And since there are 10 high schools, the total number of students included in the sample is 50 * 10 = 500 students.
Joe wants to find the most common source of news among U.S. adults. He wants his sample to have 10,000 adults (half male and half female individuals) to make a valid generalization. How many people from each of the 50 states should he choose randomly to avoid bias in his study?(1 point)
adults
To avoid bias in his study, Joe should choose 200 people randomly from each of the 50 states. This is because he wants a total sample size of 10,000 adults, which is divided equally between males and females. So, 10,000 divided by 2 (for an equal split between males and females) gives us 5,000 individuals of each gender. And since he wants to avoid bias, Joe should randomly choose an equal number of individuals from each state, resulting in 200 individuals from each of the 50 states.
You want to estimate the number of students who bring their lunch to school every day. Which of the following is the best sample for this situation?(1 point)
Responses
50 female students selected at random
50 female students selected at random
all members of the Math Club
all members of the Math Club
45 first-year students selected at random
45 first-year students selected at random
80 students selected at random during lunch