Answer:
Approximate probability that the number of households that use the Internet for banking in a sample of 1000 is less than or equal to 130 is less than 0.0005% .
Step-by-step explanation:
We are given that let X be the number that do some or all of their banking on the Internet.
Also; Mean, 
= 310/1000 or 0.31 and Standard deviation, 
= 14.63/1000 = 0.01463 .
We know that Z = 
~ N(0,1)
Probability that the number of households that use the Internet for banking in a sample of 1000 is less than or equal to 130 is given by P(X <= 130/1000);
P(X <=0.13) = P( <= 
) = P(Z <= -12.303) = P(Z > 12.303)
Since this value is not represented in the z table as the value is very high and z table is limited to x = 4.4172.
So, after seeing the table we can say that this probability is approximately less than 0.0005% .
Answer:
An equation in standard form modeling this situation is:
75x + 50x = 425
Step-by-step explanation:
Let
x represent the number of pairs of socks you buy
y represent the number of pairs of gloves you buy
Each pair of Socks in store cost 75php, and each pair of gloves costs 50php. If you want to spend exactly 425php.
The equation is given as:
75php × x + 50php × y = 425php
= 75x + 50y = 425
Therefore,
the equation in standard form modeling this situation is:
75x + 50x = 425
Answer:
E.) None of these choices are correct.
Step-by-step explanation:
31%
4848.60 - 3360.00=1488.00
Answer:
I can't help you if you don't show me the graph or the whole thing
Step-by-step explanation:
9514 1404 393
Answer:
(4, -2)
Step-by-step explanation:
If (x, y) is part of the relation f, then (y, x) will be in the inverse relation f^-1.
The point contained in f^-1(x) is (4, -2).
_____
<em>Additional comment</em>
The range of f is {2, -4, -2, -4}, which has -4 repeated. That means <em>the inverse relation is not a function</em>. We can say that (4, -2) is a point contained in the inverse relation, but we cannot say that f^-1(x) is a function.
