Answer:
b
Step-by-step explanation:
Answer: 19
Step-by-step explanation:
1% of 120 is 1.2, so 7 *1.2 = 8.4
Also you could set up the proportion 7/100 = x/120 and solve for x.
Answer:
12.5663706144
If necessary, and if your system/teacher allows it, just keep it down to 1-3 decimals.
Hope I could help! :D
Answer:
4.19
Step-by-step explanation:
Find the mean:

Find the standard deviation:
