The ratio of boys to girls in a school is 5:4 . Check all statements that must be true based on the statement above. If none of the statements is true, check "None of the above". There are exactly 5 boys and exactly 4 girls in the school. For every 4 girls in the school, there are 5 boys. For every 4 boys in the school, there are 5 girls. For every 5 boys in the school, there are 4 girls. None of the above

Anyone know? will mark brainliest if correct

#1-20 state whether the angles are alternate interior, alternate exterior, vertical, or corresponding angles.

Me 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.