The weights of 24 randomly selected first graders at one elementary school were recorded as follows. Find the following descriptive statistics (if necessary, round answers to two decimal places). 45  50  60  65  48  52  62  57  62  70  51  59  65  49  46  50  51  53  58  62  67  71  59  64 Mean =

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A: Given :  The weights of 24 male children.

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A: We know that mean m of data is given by         m=(sum of terms) ÷ ( no. of terms)

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A: “Since you have posted multiple questions, we will provide the solution only to the first question…

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A: Given : n=36

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A: Given data, 45 60 61 61 62 71 72 73 76 78 79 81 85 87 88 91 97 98.

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A: Formula for mean is  x̄ = Σx̄i *ni/n!

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A: As per our guidelines we are supposed to answer only one question kindly post the remaining question…

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A: Given data set is,Personweight Deviation from the mean1139-21.52150-10.5318120.54X11.5

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A: