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.
It could sometimes be proportional. The reasoning here is that if all the items have different prices it won't be, however if the items you are ordering all have the same price they will be!
Answer:
25.04
Step-by-step explanation:
26.12-1.08
=25.04
Answer:
x^2 y^12
Step-by-step explanation:
( x ^ 1/2 * y ^3 ) ^ 4
A power raised to a power has the exponents multiplied
a^b^c = a^ (b*c)
x^ 1/2 ^ 4 * y^3^4
x^(1/2*4) * y^(3*4)
x^2 y^12
187000-5000=182000
182400+200=182600
The number is 182,600