Answer:
Step-by-step explanation:
Given that Saguaro cacti are large cacti indigenous to thesouthwestern United States and Mexico. Assume that thenumber of saguaro cacti in a region follows a Poisson distribution with a mean of 280 per square kilometer.
a) Mean number of cacti per 10,000 square meters=280*10000 = 2800000
b) P(no cacti in 10000) sq m = P(X=0) for Poisson with parameter 2800000
= 0
(almost uncertain event)
c) Area of a region such that the probability of at least twocacti in the region is 0.9.
We get this is possible if mean = 8.4 for Poisson
i.e. region should have area as
The correct is b.
This is because, confidence interval is given by:
Confidence interval = p +/- error
In this case,
p = 18%
error = 3%
Therefore;
Confidence interval = 18+/-3 = [(18-3),(18+3)] = [15,21].
Therefore it will be true to say that the percentage of those who jog is between 15% and 21%.
Answer:
6 feet and 2 x-intercepts
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ab_10july27
Answer:
AC = 10 units
Step-by-step explanation:
From the picture attached,
Triangle ABC is a right triangle.
Opposite side of the right angle B = Hypotenuse (AC)
and the other two legs are AB and BC
Pythagoras Theorem states
(hypotenuse)² = (leg 1)² + (leg 2)²
AC² = AB² + BC²
AC² = (6)² + (8)²
AC² = 36 + 64
AC² = 100
AC = √100
AC = 10
Therefore, length of the hypotenuse (AC) = 10 units will be the answer.
