# A researcher focusing on birth weights of babies found that the mean birth weight is 3367... A researcher focusing on birth weights of babies found that the mean birth weight is 3367 grams (7 pounds, 6.8 ounces) with a standard deviation of 580 grams. Complete parts (a) and (b). a. Identify the variable Choose the correct variable below. O A. The number of births per capita OB. The accuracy of the measurements of baby birth weights OC. The weights of the babies at birth OD. The number of babies that were bom b. For samples of size 200, find the mean and standard deviation, of all possible sample mean weights. - Type an integer or a decimal. Do not round.) :- (Round to two decimal places as needed.) Click to select your answers).

Hello

A. OPTION C : The weights of babies at birth

B. For a sample size of 200,

Mean = 3367

S.d. = 580/(200^0.5)= 41.01

Thanks

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