# Births.csv dataset contains data about newborn babies and their mothers collected at a hospital
# in North Carolina. Download it from Canvas and copy (or upload if Server) it to R’s working directory.
# Read the dataset first by running the following lines.
b = read.csv(“Births.csv”)
# Name of the dataset is b.
# Answer the following questions.
# 1) How many rows and columns are there in the dataset?
# 2) Is there any missing values in the dataframe?
# 3) List column names and then rename the “lowbirthweight” variable to “lowweight”.
# 4) List babies weight and mother’s age for smoking mothers who are mature moms.
# 5) List baby’s gender and gained weight by mothers who are younger than 20 and not married.
# 6) Create two vectors:
# a) Babies’ weight vector for female babies
# b) Babies’ weight vector for male babies
# 7) Using the vectors in Question 6, calculate average weight for each.
# Which gender is heavier on average? Hint: Use function mean().
# 8) Calculate a new vector based on the following formula
# (gained – weight)/weeks. Name this vector “extraPerWeek”