Answer:
(a) According to the central limit theorem, the distributions of the sample means of sufficiently large samples randomly selected from a population with mean, μ and standard deviation, σ with replacement will be normally distributed
Therefore, given that the size of the population from which the samples were selected (34 petri dishes) is comparable the sizes of the samples, (16 and 18), therefore, the samples are approximately normal
Also given that the petri dishes were prepared with growth medium designed to increase the growth of microorganisms, with an expected amount of growth, the samples therefore came from approximately normal distributions
Step-by-step explanation:
There are special trigonometric angle ratios for right triangles, which are sine (sin), cosine (cos), and tangent (tan). Sine is opposite over hypotenuse, cosine is adjacent over hypotenuse, and tangent is opposite over adjacent.
You can remember this with SOHCAHTOA. S=sin, O=opposite, H=hypotenuse
The angle is given along with its adjacent side (1.2) and the hypotenuse (x). Use cosine.
Cos(33) = adjacent/hypotenuse
Cos(33) = 1.2/x
x = 1.2 / cos(33)
Now type into your calculator 1.2 / cos33
It moves the graph 5 steps downwards on the y axis.
8-4=4
9-6=3
Use Pythagorean theorem.
The nearest tenth is 5.
So the answer is point D.)
Answer:
B
Step-by-step explanation: