If 6 coins are flipped, find the probability that there is at least 1 flip that lands on heads.

A school's art club holds an art sale on Fridays to raise money for art supplies. Here is the amount of money in dollars they made each week in the fall and in the spring:

• fall
• 20
• 26
• 25
• 24
• 29
• 20
• 19
• 19
• 24
• 24

• spring
• 19
• 27
• 29
• 21
• 25
• 22
• 26
• 21
• 25
• 25

1. Find the mean amount of money made in the fall and in the spring.

2. The MAD for the fall data is 2.8 dollars. The MAD for the spring data is 2.6 dollars. Express the difference in means as a multiple of the larger MAD.

3. Based on this data, do you think that sales are generally higher in the spring than in the fall?

A school is selling candles for a fundraiser. They keep 40% of the total sales as their commission, and they pay the rest to the candle company.

How much money must the school pay to the candle company?