Answer:
x = 54, so the vertical angles are 110°.
Step-by-step explanation:
The sample std. dev. will be (14 inches) / sqrt(49), or (14 inches) / 7, or 2 inches.
Find the z score for 93.8 inches:
93.8 inches - 91.0 inches 2.8 inches
z = ------------------------------------- = ----------------- = 1.4
2 inches 2 inches
Now find the area under the standard normal curve to the left of z = +1.4.
My calculator returns the following:
normalcdf(-100,1.4) = 0.919. This is the probability that the mean annual precipitation during those 49 years will be less than 93.8 inches.
Answer:
x= -3
Step-by-step explanation:
Look at the screenshot, it explains how I got the answer.
Answer:
sorry i do not know
Step-by-step explanation:
i know nothing
