To answer (a), we will need to find the Z value for 710 hours and 990 hours.


B) 68% of data lies between one standard deviation of the mean.
850 +70 = 920
850 - 70 = 780
Answer: a) 0.7814
b) False
Step-by-step explanation:
To find : The p-value of z , where


Hence, the standard normal probability 
In the formula used to convert "real-world" data values into z numbers, the standard deviation of the data is considered.
The formula to calculate the z score is
.
If sample size (n) is given then , the 
Hence, the statement is false.
Answer:
Step-by-step explanation:
y=mx+b
y-intercept= 1
b=1
point (5,4)
x=5
y=4
y=mx+b
4=m(5)+1
5m=3
m=3/5
rate of change = 3/5
11/29 i believe. Cuz you add them all together and get 29 and then red and green added together is 11
The inverse is b. If 4x+1 .NE. 61, then x-5 .NE.10