Sofia is a for the kindergarten class and is in charge of picking a video for their end-of-year party. to choose which type of movie they would like best, she decided to survey every other child entering a matinee for a cartoon called, “three pretty princesses.” the total number of children surveyed was 40. what is wrong with the way she selected her sample? check all that apply. the sample of 40 children is too small to represent all kindergartners. the sample was taken at a specific movie, which will skew data towards that type of movie. the sample is likely to include a lot more girls than boys, since the movie title is “three pretty princesses.” the sample should include the adults with the children instead of only children. the sample should include the other peer in her grade to include a greater age range.

The answers are B and C, The sample was taken at a specific movie, which will skew data towards that type of movie.

The sample is likely to include a lot more girls than boys, since the movie title is “Three Pretty Princesses.” I took the test.

As the cartoon is called, “Three Pretty Princesses.”, it will be favored by more girls as compared to boys. So, the maximum kids who went to watch this movie would have been girls. Hence, The sample is likely to include a lot more girls than boys, since the movie title is “Three Pretty Princesses.” Their can be bias.

And all the 40 kids were surveyed on a certain same kind of cartoon movie, rather the kids should have been surveyed for few more movies they would like to watch. Hence, The sample was taken at a specific movie, which will skew data towards that type of movie.

check the picture below.

well, the angle at the vertex d is clearly not a right-angle, let's check for the one at the vertex f which does look like,   however if it's indeed, that means ef is perpendicular to df, in which case their slopes will be negative reciprocal of each other.

so the negative reciprocal of the slope of ef is 1, however the slope of df is not 1, is 1/2, so nope, they're not perpendicular lines.