# Compute the mean for 'average_cost_for_two'
costs = restaurantTable['average_cost_for_two']
avgCosts = costs.mean()
print("Average Cost for Two = $", avgCosts)

# Compute percentage of values below the mean.
belowCostMean = costs < costs.mean()
numBelowCostMean = belowCostMean.sum()
print("Percentage of restaurants below the mean is = ",numBelowCostMean*100/costs.count(), "%")