Which statements about the data sets are true? Check all that apply. The data for the group that plays an instrument are more spread out than the data for the group that did not play an

instrument

The data for the group that plays an instrument are more clustered around the mean than the data for the group that did

not play an instrument.

The mean absolute deviation for students who play an instrument is 1.

The data for the group that does not play an instrument are more spead out than the data for the group that does play

an instrument

The mean absolute deviation for the group of students who do not play an instrument is 2

The data for the group that does not play an instrument are more clustered around the mean than the data for the group

that does play an instrument.

carbon

explanation:

estuaries are the partially enclosed coastal bodies of brackish water formed at the mouth of sea where river meets an ocean. it is a transition zone between river and sea water so estuaries are influenced to both marine environment such as tides, waves and to riverine such as flow of fresh water and sediments. the mixing of sea and fresh water provide high level of nutrients, making estuaries a high product habitats.

many estuaries suffers degradation from a variety of human activities like erosion from deforestation, overgrazing, overfishing, drainage and eutrophication.

so from the above statement answers will be

1. false as estuaries are formed due to both brackish and freshwater.

2.true, due to high productivity estuaries are breeding ground for many marine species.

3. direct and indirect activities of man that contribute to pollution and deposition of sediments.