Answer:
60 minutes is the answer.
Step-by-step explanation:
10 x 6 = 60
15 x 4 = 60
12 x 5 = 60
7 2/5 x 6 1/4
14/5 x 6/4
84/20
21/5
=4.2
The frequency of the second class is 6.
Since the class width is 6 and the lower limit of the first class is 50, this means the first class goes from 50-55. This would put the second class at 56-61. There are 6 data points in this set that would go in the second class.
Answer:
When multiplying fractions, multiply the top number by the top number, and the bottom number by the bottom number.
So we have: (9x2)/(10x5).
This simplifies to: 18/50, or 9/25.
Let me know if this helps!
