Answer:
The correct option is (a) 0.9780.
Step-by-step explanation:
According to the Central limit theorem, if from an unknown population large samples of sizes n > 30, are selected and the sample proportion for each sample is computed then the sampling distribution of sample proportion follows a Normal distribution.
The mean of this sampling distribution of sample proportion is:
The standard deviation of this sampling distribution of sample proportion is:
As the sample selected is quite large, i.e. <em>n</em> = 110 > 30, the central limit theorem can be applied to approximate the sampling distribution of sample proportion by a Normal distribution.
The mean and standard deviation are:
Compute the probability that the sample proportion of students living in the dormitories falls in between 0.60 and 0.80 as follows:
*Use a <em>z</em>-table.
Thus, the probability that the sample proportion of students living in the dormitories falls in between 0.60 and 0.80 is approximately equal to 0.9780.
The correct option is (a).
Let f(x)= 2x+3 and g(x)= 1/2x -3/2. Evaluate (fog)(-3)
First solve for g(x) by replacing x with -3:
g(x) = 1/2(-3) -3/2
g(x) = -3/2 - 3/2
g(x) = -3
Now solve for f(x) by replacing x with -3:
f(x) = 2(-3) + 3
f(x) = -6 +3
f(x) = -3
The answer is -3
Answer:
D, It's used for every one
Step-by-step explanation:
Answer:
a perfect square less than or equal to 16 is 16
Step-by-step explanation:
the perfect squares between 0 and 16 are
1 , 4 , 9 , 16
anyone of them can be your answer.
Answer:
d
Step-by-step explanation: