statistics

posted by .

The test scores for 9 students on the Unit 1 test were 35, 25, 50, 95, 80, 60, 45, 100, and 90. What is the value of the second quartile for this data set?

• statistics -

put them in rank

25;35;45;50;60;80;90;95;100

Median 60, fourth quartile 92.5, second quartile 40

• statistics -

After putting them in order of value, the second quartile = median (2/4 = 1/2). First quartile indicates the lowest 25%, while the third quartile indicates the highest 25%.

Similar Questions

1. statistics

5) (2 pts) One fourth of the scores in any data set are below the A) first quartile B) second quartile C) third quartile D) fourth quartile
2. statistics

5) (2 pts) One fourth of the scores in any data set are below the A) first quartile B) secon quartile C) third quartile D) fouthr quartile
3. statistics

below is the test scores for students in a statistics class.80,65,79,83,60,79,90,77,84,93.the professor assigned a grade of c to students whose test scores were within 5 points of the mean in either direction .how many students got …
4. statistics

2. Why is it important to know the mean and standard deviation for a data set when applying the empirical rule?
5. statistics

Below are six data sets with 6 randomly selected scores in each data set. Your task is to determine if the scores were drawn from a population with μ = 5. Before you calculate the one-sample t test for each sample, make a guess …
6. North Central

Steven collected data from 20 college students on their emotional responses to classical music. Students listened to two 30-second segments from “The Collection from the Best of Classical Music.” After listening to a segment, the …
7. Math

The box-and-whisker plots show data for the test scores of four groups of students in the same class. Which plot represents data with the greatest range or scores?
8. Math Help!

The box-and-whisker plots show data for the test scores of four groups of students in the same class. Which plot represents data with the greatest range or scores?
9. Math

I know someone has posted this question before but didn't get an answer so sorry for the post. The box-and-whisker plots show data for the test scores of four groups of students in the same class. Which plot represents data with the …
10. statistics

10th grade New York public school students taking a standardized English test produced test scores that were normally distributed with a mean of 85 and a standard deviation of 4. Let x be a random variable that represents the test …

More Similar Questions