First, start at zero. Now, because we are multiplying -4 by 3, we will jump over by 4 to the left ; 3 times on the number line. We should reach -12, and if we check our work, 3 x -4 = -12.
Answer:
a) probability that the sample will have between 50% and 60% of the identification correct = 0.498
b) The probability is 90% that the sample percentage is contained 45.5% and 54.5% of the population percentage
c) Probability that the sample percentage of correct identifications is greater than 65% = 0.01
Step-by-step explanation:
Sample size, n = 200
Since the brands are equally likely, p = 0.5, q = 0.5
The Standard deviation,
a) probability that the sample will have between 50% and 60% of the identification correct.
Probability that the sample will have between 50% and 60% of the identification correct is 0.498
b) p = 90% = 0.9
Getting the z value using excel:
z = (=NORMSINV(0.9) )
z = 1.281552 = 1.28 ( 2 dp)
Then we can calculate the symmetric limits of the population percentage as follows:
The probability is 90% that the sample percentage is contained 45.5% and 54.5% of the population percentage
c) Probability that the sample percentage of correct identifications is greater than 65%
P(X>0.65) = 1 - P(X<0.65)
Look at the angles inside the triangle.
Two of them are equal !
That tells us that the sides opposite those angles are equal.
So x² + 5 = 248 .
I'll bet you can take it from there and find the value of ' x '. Right ?
Answer:
side length of one square
Step-by-step explanation:
the side lengths of the quilt is:
length = 4.5 ft
breadth = 3 ft
We also know that the areas of all 24 squares add up to fill this area of 13.5 as well
Hence,
to find the area of one square just divide 13.5 by 24
to find the side length of one square recall the area formula for a square.
length of side length of one square.
NOTE:
You can do this easily by dividing the side length of either side of the quilt by the number of squares on that side of the quilt.