At a concert, a representative sample is collected of men and women. The sample contains 9 men and 7 women. Which inference is valid for the population of people attending the concert?
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1 point
56% of the population are men.
7 out of every 9 members in the population are women.
78% of the population are women.
There are more women than men in the population.
56% of the population are men.
During a high school hockey game, every spectator placed his or her ticket stub into one of several containers. After the game, the coach chose ten people to march in the sportsmanship parade. What is the sample in this situation?
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1 point
The coach
The hockey game spectators
The ten people to march in the sportsmanship parade
The ticket stubs
The ten people to march in the sportsmanship parade.
A popular art teacher at a school asks a sample of students if they would be interested in taking an art class next year. Of the 30 students he asks, 85% are in one of his art classes this year. Only 15% of the students in the school are in one of his art classes this year. Will this sample be biased?
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1 point
Yes, because students who are in one of his art classes this year will be more likely to take one of his art classes next year.
No, because students who are in one of his art classes this year will be less likely to take one of his art classes next year.
Yes, because students who are in one of his art classes this year will be less likely to take one of his art classes next year.
No, because students who are in one of his art classes this year will be more likely to take one of his art classes next year.
Yes, because students who are in one of his art classes this year will be more likely to take one of his art classes next year.
To determine which inference is valid for the population of people attending the concert, we need to analyze the given information. The sample contains 9 men and 7 women.
Given that the sample consists of 9 men and 7 women, we can infer that there are more men than women in the sample. However, we cannot directly generalize this information to the population attending the concert.
Therefore, the only valid inference we can make is that there are more women than men in the population attending the concert.
To determine which inference is valid for the population of people attending the concert, we need to analyze the given information: the sample contains 9 men and 7 women.
First, let's calculate the total number of people in the sample: 9 men + 7 women = 16 people.
Now, we will compare the number of men and women in the sample to determine the valid inference for the population attending the concert.
In the given sample, there are 9 men and 7 women. So, out of the 16 people in the sample, the proportion of men is 9/16 or 0.5625 (56.25%). Similarly, the proportion of women is 7/16 or 0.4375 (43.75%).
Based on this calculation, we can conclude that the valid inference for the population of people attending the concert is:
56% of the population are men.
Therefore, the correct answer is: 56% of the population are men.