Answer:

Step-by-step explanation:
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Step-by-step explanation:
We can see from the image that z and 20° degrees are complementary, meaning they have a sum of 90°. From this, z = 70°. Hope this helps!
Mean, mu=44 cm
standard deviation, sigma = 4 cm
X=41
We calculate the Z-value for 41 cm
Z(41)=(41-mu)/sigma=(41-44)/4=-0.75
The probability that x>X
P(x>X)
=P(x>41)
=1-P(x<41)
=1-0.2266274 (from standard normal distribution tables for left-tail of Z=-0.75)
= 0.7733726
Answer:
=》n = 10
Step-by-step explanation:
here's the solution :-
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hence, the value of n = 10