O is the centre of this circle and point Q is a point of tangency. Determine the value of t. If necessary, give your answer to t
he nearest tenth.
a) 30.3
b) 22.5
c) 20
d) 19.7
a) 30.3
b) 22.5
c) 20
d) 19.7
1 answer:
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Answer:
(a) 93.19%
(b) 267.3
Step-by-step explanation:
The population mean and standard deviation are given as 502 and 116 respectively.
Consider, <em>X</em> be the random variable that shows the SAT critical reading score is normally distributed.
(a) The percent of the SAT verbal scores are less than 675 can be calculated as:
Thus, the required percentage is 93.19%
(b)
The number of SAT verbal scores that are expected to be greater than 575 can be calculated as:
So,
Out of 1000 randomly selected SAT verbal scores, 1000(0.2673) = 267.3 are expected to have greater than 575.