Relative Heights of adult males are known to have a normal distribution. A researcher claims to have randomly selected adult males and measured their heights with the resulting Height (cm) 130-144 145-159 Frequency 23% relative frequency distribution as shown here. Identify two major flaws with these results. 24% 160-174 21% 175-189 27% 190-204 29% Select all that apply. O A. All of the relative frequencies are different. If they are from a normal distribution, they should all be exactly the same. O B. All of the relative frequencies appear to be roughly the same. If they are from a normal distribution, they should start low, reach a maximum, and then decrease. O C. The relative frequencies were recorded as percents instead of counts. O D. The sum of the relative frequencies is 124%, but it should be 100%, with a small possible round-off error. O E. The classes do not allow for the possibility that an adult male could be between 144 cm and 145 cm tall, or between 159 cm and 160 cm tall, and so on. O F. The classes do not allow for the possibility that an adult male could be less than 130 cm tall or greater than 204 cm tall.

Find the mean, the median, and the mode(s), if any, for the given data. Round noninteger means to the nearest tenth. (If there is more than one mode, enter your answer as a comma-separated list. If an answer does not exist, enter DNE.) 27, 31, 20, 46, 36, 6, 55, 11 mean      median      mode(s)

9. Determines the average, median and standard deviation of each of the distributions to a variable (age, girl reaction time and boys reaction time).What interpretations can you make of it? B.) For each of the three two-variable distributions, make a graphical representation using a technological tool and calculate the values that can be used to interpret them. C.) Interpret graphic representations and draw conclusions.

Which of the following statements is TRUE about the mean scores of the two sections? Descriptive Statistics Score Section A Section B Valid 45 45 Missing Mean 8.556 9.222 Std. Deviation 5.995 6.420 O a. Section B is more knowledgeable on the selected topic in Geometry than section A. b. Section B's mean score is higher than that of Section A's. O c. Section A's mean score is higher than that of Section B's. O d. Section A is more knowledgeable on the selected topic in Geometry than section B.