Answer:
Step-by-step explanation:
<u>It is asking how many times the flower bed expanded:</u>
- 75/4 ÷ 25/4 =
- 75/4 × 4/25 =
- 75/25 =
- 3
Answer:
0.706....
Step-by-step explanation:
Answer:
The probability that the next room will require less than 32 minutes to clean
0.222222 = 22.22%
The probability that the next room will require more than 30 minutes to clean.
0.833333 = 83.33%
The mean
36.5
Standard deviation of the distribution
26.92
Step-by-step explanation:
Total Probable Outcomes = 18
Event 1
Possible outcomes less than 32 = 32-28 = 4
Probability less than 32 = 4/18 = 2/9 = 0.222222
Event 2
Possible outcomes less than 32 = 45-30 = 15
Probability less than 32 = 15/18 = 5/6 = 0.833333
Mean
Mean = (28+29+30+31+32+33+34+35+36+37+38+39+40+41+42+43+44+45)/18 = 36.5
Standard deviation of the distribution
*MS Excel file is attached for solution.
the shorter piece is 8 feet long
the longer piece is 19 feet long
HOPE THIS HELPS!!!
