conversations.from: human
conversations.value: The Indigo Restaurant receives 18 online customer reviews. They receive six 5-star reviews, seven 4-star reviews, four 3-star reviews, and one 2-star review. What is the average star rating for Indigo Restaurant based on these reviews?
  Work out the solution step by step.
conversations.from: assistant
conversations.value: Total stars for the 5-star rating is 6 x 5 = 30 stars.
  Total stars for the 4-star rating is 7 x 4 = 28 stars.
  Total stars for the 3-star rating is 4 x 3 = 12 stars.
  Total stars for the 2-star rating is 1 x 2 = 2 stars.
  Total stars received is 30 + 28 + 12 + 2 = 72.
  Average rating is 72 / 18 = 4 stars.