A class was performing an experiment to discover the pH values of some common household substances. The results of three groups are shown in the table below.
Substance
Lemon juice
Vinegar
Baking soda
Milk of magnesia
Group 1 pH
2.2
2.8
Group 2 pH
2.2
2.8
8.5
Group 3 pH
2.1
8.2
8.4
10.2
8.4
10.2
10.3
Which statement best describes evidence that Group 3's data are less valid than the data for the other two groups ?

14) whenever diploid populations are in hardy-weinberg equilibrium at a particular locus a) the allele's frequency should not change from one generation to the next, but its representation in homozygous and heterozygous genotypes may change. b) natural selection, gene flow, and genetic drift are acting equally to change an allele's frequency. c) this means that, at this locus, two alleles are present in equal proportions. d) the population itself is not evolving, but individuals within the population may be evolving.