Answer:
9.333
Step-by-step explanation:
25. Cross multiplying
nx1 =0.19x12
n=2.28
Answer:
Real numbers are all the rational numbers such as -7 and 4/3 and all irrational numbers. Real numbers are used mainly in counting and are used in measurement which is always present in real-world situations. These numbers help us to quantify things around.
According to the 3:1 ratio, you expect, out of a population of 1000 people, 750 non-hemophilia and 250 hemophilia.
The chi-square value can be calculated by the formula:
where:
O = observed value = 210
E = expected value = 250
Therefore:
χ² = (210 - 250)² / 250
= 6.4
Now, look at a χ<span>² distribution table, in order to find the p-value. In this case, you have only 1 degree of freedom and the closest </span>χ<span>² is 6.6 which corresponds to a p-value of 0.01.
Since p < 0.05, which is the minimum value generally accepted, we can say that the data do not support the hypothesis.</span>
Answer:
A, 4
B, 0
Step-by-step explanation:
gcf = 4
32-28 = 4 (4-4) = 4(0) = 0
can i get brainliest?
(x+7) (x-7)
Because: the difference of two squares.