Square root of (2x-3)2=121
1 answer:
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Answer:
Step-by-step explanation:
Given that the time to complete a standardized exam is approximately normal with a mean of 70 minutes and a standard deviation of 10 minutes.
P(completing exam before 1 hour)
= P(less than an hour) = P(X<60)
=P(Z<)
=0.5-0.34=0.16
i.e. 16% of students completed the standardized exam.
Answer:
A = –3
B = 7
Step-by-step explanation:
Please see attached photo for explanation.
