To estimate the number of people at the event who are under 30 years old, we can calculate the proportion of people under 30 in our sample and then apply that proportion to the total number of spectators.
In the sample of 400 spectators, if 220 people are under 30 years old, then the proportion of people under 30 in the sample is:
220/400 = 0.55
To estimate the number of people under 30 at the event, we apply this proportion to the total number of spectators:
8,000 * 0.55 = 4,400
Therefore, we estimate that there are approximately 4,400 people under 30 years old at the basketball game.
Suppose there are 8,000 people at a basketball game. You survey a random sample of 400 spectators and gather the following information: Estimate the number of people at the event who are under 30 years old
8,000 people 4,400 people 220 people 400 people
9 answers
You use this type of graph when comparing a change over the course of time. * 1 point pie or circle graph line graph bar graph
Line graph is used when comparing a change over the course of time.
Find the mean of these numbers: 5,11,2,12,4,2 * 1 point 4.1 4.5 6 4
To find the mean of the numbers 5, 11, 2, 12, 4, and 2, you would add up all the numbers and then divide by the total number of values.
5 + 11 + 2 + 12 + 4 + 2 = 36
To find the mean:
36 / 6 = 6
Therefore, the mean of the numbers 5, 11, 2, 12, 4, and 2 is 6.
5 + 11 + 2 + 12 + 4 + 2 = 36
To find the mean:
36 / 6 = 6
Therefore, the mean of the numbers 5, 11, 2, 12, 4, and 2 is 6.
In order to find the median, the data must be sorted from least to greatest first. * 1 point True False
True
In order to find the median of a set of data, the data must first be sorted from least to greatest (or greatest to least). Once the data is sorted, you can easily identify the middle value as the median.
In order to find the median of a set of data, the data must first be sorted from least to greatest (or greatest to least). Once the data is sorted, you can easily identify the middle value as the median.
A middle school has 6th grade, 7th grade, and 8th grade teachers. The principal wants to determine what supplies to order for the supply closet. Which of the following represents a random sample of teachers
a. Surveying all the math teachers b. Surveying all the teachers who have bus duty c. Surveying all the teachers who are married d. Surveying every fifth teacher according to the staff directory on the school website
a. Surveying all the math teachers b. Surveying all the teachers who have bus duty c. Surveying all the teachers who are married d. Surveying every fifth teacher according to the staff directory on the school website
d. Surveying every fifth teacher according to the staff directory on the school website
Surveying every fifth teacher according to the staff directory on the school website would provide a random sample of teachers at the school. This method ensures that each teacher has an equal chance of being selected, making it a more representative sample of the different grade levels and subjects taught at the school.
Surveying every fifth teacher according to the staff directory on the school website would provide a random sample of teachers at the school. This method ensures that each teacher has an equal chance of being selected, making it a more representative sample of the different grade levels and subjects taught at the school.
1 answer