Given the data D={11, 12, 13, 14, 15, x} with mean 12.5. Find the median of D if D has no mode.
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Given the data D={11, 12, 13, 14, 15, x} with
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- A particular standardized test has scores that have a mound-shaped distribution with mean equal to 126 and standard deviation equal to 22 . Tom had a raw score of 161, Dick scored at the 98th percentile, and Harry had a z score of 2.00. Arrange these three students in order of their scores from lowest to highest. ▼(Choose one) , ▼(Choose one) , ▼(Choose one)The line drawn within the box of the box-and-whisker plot represents the mean. TRUE FALSE25. Suppose exam grades were recorded for 20 students in the class, but one of the grades is no longer readable. If the mean score on the exam was 80 and the mean of the 19 readable scores is 82, what is the value of the unreadable score?
- What are 2 situations when you will use median as a measure of central tendency.Find the standard deviation of the following -14, -4,-10, -12, 5, -1.Suppose we measure GPA for people in our class, we find the mean is 2.8 and the median is 3.2. What can you say is most likely true about GPAs in our class?
- Suppose that 10 students have taken an exam and that the mean and median scores are both 60. (Since 10 is an even number you can assume that two scores in the middle are both 60.) Two more students take it and one scores 70 and the other scores 26. If these students are now included, what is the new mean? What is the new median?If the mean of examination scores for two classes of the same level: A and B, in a certain school are 73 and 59 respectively. Find the combined mean score for both classes if there are 25 students in class A and 18 in class B.Use the following table to answer Questions 11 – 14. The numbers represent the points scored in 20 high school basketball games. 25 33 33 43 44 49 50 53 54 54 54 54 57 58 62 63 63 65 66 69 11. Construct a frequency distribution table of the data. Use class width of 10 and start first class with 20.
- Out of 57 high school female athletes, data was collected on how much they were able to bench press. From this data we get x=79.9,Q1=70, Q2=80, and Q3=90. Determine if the data distribution is skewed or symmetric. Give 2 reasons to back up your answer.Calculate the mean if -2 standard deviation = 70 and +2 standard deviation = 100. The mean of the data set isIf the median of a data set is 134 and the mean is 177, which of the following is most likely?
