A-b
difference means subtract
All you need to do is divide 96 by 8 and you get 12 as your answer
<span>Given:
xbar = 20 min
standard deviation = 8 min
total sample = 240
Required:
how many gym members are expected to spend 4 min and 36 min on a treadmill today
Solution:
sd</span>² = (∑(x - xbar)²) / N - 1
there are 42 gym members at 4 minutes and 200 gym members in 36 minutes.
Answer:
Step-by-step explanation:
x+2=0
x=-2
-2 | 2 9 -8 -36
| -4 -10 36
______________
| 2 5 -18 | 0
area= 2x²+5x-18
