Mathematics, 05.05.2020 04:05, daevinepetersopa86on
A random sample of 184 students at South High School were surveyed on whether they would prefer going to a movie or a concert. The results are shown in the relative frequency table. A 4-column table with 4 rows. The first column has no label with entries 10th, 11th, 12th, total. The second column is labeled movie with entries 0.18, 0.16, 0.24, 0.58. The third column is labeled concert with entries 0.15, 0.18, 0.09, 0.42. The fourth column is labeled total with entries 0.33, 0.34, 0.33, 1.00. Which statements are correct? Check all that apply. The marginal relative frequency for 10th graders is 0.18. 42% of the students prefer a concert over a movie. A greater ratio of 11th graders prefer a concert to a movie. More 12th graders were surveyed than any other grade level. The difference in the percent of students who prefer a movie over a concert is16%.
Answers: 3
Mathematics, 21.06.2019 20:30, alexialiles19
Max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.
Answers: 2
A random sample of 184 students at South High School were surveyed on whether they would prefer goin...
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