Which of the following statements is not true concerning the comparison of the bag weights for the two brands?

Almost 25% of the weights for brand B are less than the lowest weight for brand A.
About 50% of the weights for brand A are within the top 25% of the weights for brand B.
More than 75% of the weights for brand A are within the top 50% of the weights for brand B.
More than 75% of the weights for brand A are higher than the top 25% of the weights for brand B.