Rational numbers can be written in form a/b where b≠0
5.2 and 5.5
52/10 and 55/10
so some rational numbers could be
53/10, 54/10
irrational numbers
hmm, most likely the square root numbers
ok, square them
5.2^2=27.04
5.5^2=30.25
5.2<?<5.5
square everybody
27.04<?²<30.25
so pick a number between 27.04 and 30.25
29 or 30 are 2 numbes
I'll pick 29
?²= 29
square root
?=√29
the irrtaional number can be √29
it is 5.39 to the hundreth
Answer:
i think it (negative 4) Superscript 8
Step-by-step explanation:
because it 8 fours they gave you negative 4 and how many 4's it is
7.43: Let denote the random variable for height and for the sample mean. Then if is the mean of
So the probability that the difference between the sample and population means does not exceed 0.5 inch is
per the empirical or 68/95/99.7 rule.
7.44: For a sample of size <em>n</em>, the sample standard deviation would be . We want to find <em>n</em> such that
Comparing to the equation from the previous part, this means we would need
so a sample of at least 157 men would be sufficient.