What is the multiplicative inverse of -0.7?
1 answer:
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in the right triangle XYZ
Applying the Pythagorean Theorem
Find the value of ZY
Step
in the right triangle XYZ
Find tan°
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in this problem
opposite side angle is ZY
adjacent side angle is XZ
so
therefore
the answer is
Answer: The proportion of students spending at least 2 hours on social media equals 0.7257 .
Step-by-step explanation:
Given : The typical college freshman spends an average of μ=150 minutes per day, with a standard deviation of σ=50 minutes, on social media.
The distribution of time on social media is known to be Normal.
Let x be the number of minutes spent on social media.
Then, the probability that students spending at least 2 hours (2 hours = 120 minutes as 1 hour = 60 minutes) on social media would be:
Hence, the proportion of students spending at least 2 hours on social media equals 0.7257 .