Answer:
C. 10–15, 15–20, 20–25, 25–30, 30–35
Step-by-step explanation:
Answer:
atleast 385
Step-by-step explanation:
Given that an electrical power company is looking to expand into a new market. Before they commit to supplying the new area with electricity, they would like know the mean daily power usage for homes there.
Population std deviation = 
Sample size =
STd error of sample mean = 
Margin of error for 95% would be Critical value ( std error)
Here since population std dev is known we can use Z critical value= 1.96

Sample size should be atleast 385
Okay post them 1 at a time
26. 4 people went to the aquarium
27. $1.50 per game (subtraction property and division property)