Mathematics, 10.08.2021 05:20 BeverlyFarmer
(Hypothetical.) At a large university, assume the average Math SAT score of all students is 450 with a standard deviation of 85. For a survey, we will randomly select 200 of the students. The expected value of the sum of the 200 students' scores is 450 with a standard error of 85 . The average student score is the sum of the scores, divided by the number of students. The expected value of the average of the 200 students' scores is with a standard error of .
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Mathematics, 21.06.2019 13:00
Solve 5 tan x = 5√(3) for 0° ≤ x ≤ 180°. a. 60° b. 150° c. 30° d. 120°
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Mathematics, 21.06.2019 20:00
Someone answer asap for ! 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.
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Mathematics, 22.06.2019 01:00
The weight of 46 new patients of a clinic from the year 2018 are recorded and listed below. construct a frequency distribution, using 7 classes. then, draw a histogram, a frequency polygon, and an ogive for the data, using the relative information from the frequency table for each of the graphs. describe the shape of the histogram. data set: 130 192 145 97 100 122 210 132 107 95 210 128 193 208 118 196 130 178 187 240 90 126 98 194 115 212 110 225 187 133 220 218 110 104 201 120 183 124 261 270 108 160 203 210 191 180 1) complete the frequency distribution table below (add as many rows as needed): - class limits - class boundaries - midpoint - frequency - cumulative frequency 2) histogram 3) frequency polygon 4) ogive
Answers: 1
(Hypothetical.) At a large university, assume the average Math SAT score of all students is 450 with...
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