12% aka 12 days it didn't rain
2z +7 = -5
2z = -5 -7
2z = -12
z= -12 /2
z= -6
The answer equals to 13 1/20 or in decimal form 13.05
Answer:
174
Step-by-step explanation:
45+13=58
58*3
Data on the oxide thickness of semiconductor wafers are as follows: 425, 431, 416, 419, 421, 436, 418, 410, 431, 433, 423, 426,
DanielleElmas [232]
Answer:
423
Step-by-step explanation:
The sample mean is a point estimate of the population mean.
Therefore a point estimate of the mean oxide thickness for all wafers in the population is the mean of the sample data on the oxide thickness of semiconductor wafers.
To calculate the sample mean, we sum all the sample data and divide by the sample size which is 24. We get 423.33 ≈423
