The histograms below display test scores in three different classes, A, B, and C. Frequency Class A 50 60 70 80 90 100 Score Frequency 6- Class B 0. 50 60 70 80 90 100 Score Frequency Class C 41 2- 0 50 60 70 80 90 100 Score 1. Order the classes from lowest median score to highest. If two or more classes have the same median,

For the sample scores in the frequency distribution table below, the median is 1 4 4. 1 1 1 3.

A study was conducted to examine the impact of speaking in public on college students. A class of 15 statistics students participated in the study. At the beginning of a lecture the students recorded their systolic blood pressure. During the lecture the instructor called on each student to stand and answer questions about topics in the lecture. After speaking the students once again recorded their blood pressure. The resulting values are given below along with summary statistics. before 100 123 128 125 136 108 130 113 105 136 146 138 108 149 132 after 141 142 146 136 144 111 132 114 103 133 140 130 100 133 113 difference -41 -19 -18 -11 -8 -3 -2 -1 2 3 6 8 8 16 19   before after difference mean 125.1 127.9 -2.733 st dev 15.26 15.45 15.23 Does this information indicate that blood pressure increased because of speaking? Conduct an appropriate hypothesis test and show appropriate steps. Let μ1 mean systolic blood pressure before speaking in public, and μ2 mean…

The table below shows the scores of a group of students on a 10-point quiz. Test Score Frequency 3 1 4 1 7 4 8 4 9. 10 2 The mean score on this test is: The median score on this test is: Check Answer

Below is a histogram displaying the quiz scores for a class. Choose an estimate for the mean and median that is the best fit for this histogram. Frequency 99 10 20 30 Median 60 and mean - 55 O Median - 70 and mean = 75 O Median 75 and mean 70 Median = 80 and mean = 80 d 40 50 60 70 80 Quiz Score 90 100

The following data shows the results for 20 students in one of the post graduate unit.42 66 67 71 78 62 61 76 71 6761 64 61 54 83 63 68 69 81 53Based on the information given you are required to Compute the mean, median and mode.

Find the mean of the data summarized in the given frequency distribution table below.  Score students  50-59 5 60-69 8 70-79 5 80-89 5 90-99 17

Consider the following data set: 38 24 32 18 25 Find the 36th percentile for this data. 36th percentile =

The table below shows the scores of a group of students on a 10-point quiz. Frequency Test Score 3 4 5 6 7 8 9 10 2 3 0 3 3 3 4 4 The mean score on this test is: The median score on this test is: