In her science class, Chelsea predicted how fast a toy car would be moving after traveling for 5 seconds down a 45 degree slope. Chelsea calculated that the toy car's speed would be 37.8 meters per second. When she used a radar gun to clock the speed of the toy car, she saw that it was actually 34.0 meters per second. What was the percent error in Chelsea's calculation​

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.