The graph of a periodic function f is shown below. What is the period of this function?
   

What is the amplitude of this function?
   

Write a function formula for f. (Enter "theta" for θ.)
f(θ)=

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Suppose a man is heterozygous for heterochromia, an autosomal dominant disorder which causes two different‑colored eyes in an individual, produced 25‑offspring with his normal‑eyed wife. of their children, 15 were heterochromatic and 10 were‑normal. calculate the chi‑square value for this observation.

For what value of x does 4x = (1/8) x + 5?

What is the percentile for data value 6 in the following data set? 4 13 8 6 4 4 13 6 4 13 2 13 15 5 9 4 12 8 6 13 40 25 35 62