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.
Answer:
6.6c3 __ ------³ then -- 6 times 5 -------- 3 times 2
Answer:
The function best describe the linear relationship be y = 640 - 75x.
Step-by-step explanation:
As given
Wanda has $640 in her checking account.
She pays her landlord $75 per week for rent.
Let us assume that the number of weeks be x.
Let us assume that the y reresented the money in the account after x weeks.
Than the function becomes
y = 640 - 75x
Therefore the function best describe the linear relationship be y = 640 - 75x.