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Item 15
A guidance counselor surveys a random sample of 50 out of 1500 high school students. The results of the survey are shown. Which is the best prediction of the number of students planning to attend college

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.

Find the average speed of a rabbit that runs a distance of 22 m in a time of 1.8 s .

The sum of the reciprocal of a positive number and the reciprocal of 2 more than the number is 3/4 equation: the number is