Y2-y1 -5-(-8) 3
____ = _____ = ___ = -3/7
x2-x1 2-9 -7
Answer:
Step-by-step explanation:
x = 136/2 = 68°
Answer:
At least 37.74% of the procedures takes between 97.6 and 125.6 minutes
Step-by-step explanation:
The percentage is the area of the standard normal distribution curve between the values 97.6 and 125.6
The standard normal variate of the given data is found as

Thus for the given values Z is calculated as under

Similarly for the other value we have

Thus the area between the calculated values can be found from standard normal distribution table to be 37.74%
1st one that I can possibly think behind my brain: 326/1000 or simplified is 163/500
2nd: Three hundred and twenty six thousandths
Hope it helps! Happy Halloween!