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AlexFokin [52]
3 years ago
5

A weight-loss guru is offering free exercise training and diet plans for people who want to participate in her program. She find

s that 85 percent of the participants who signed up lost an average of 30 pounds in just six months. She then promotes her program as the most effective plan available, and promises each participant a weight loss of 20 pounds or more. Is her plan really as effective as she says?
Health
1 answer:
Ad libitum [116K]3 years ago
5 0

Answer:

No; the study is based on a volunteer sample, which may be very different from a randomly selected one.

Explanation

Her plan cannot be effective because she could base her own judgenent on samples that was randomly selected for consideration.

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If two brown-eyed people have a blue-eyed child, we can deduce which of the following? A. The gene for blue eyes is sex-linked.
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3 years ago
A meter scale is placed along the axis of convex mirror of focal length 25 cm, its nearer end being at a distance of 50 cm. Calc
GenaCL600 [577]

Answer:

50 cm

Explanation:

Given that

Focal length of the mirror, f = 25 cm

Distance of the image, u = ?

Distance of the object, v = 50 cm

The formula for the focal length of a convex mirror is given by the relation

1/f = 1/u + 1/v,

where each of the parameters are exactly the same as what I've defined above. So now, if we plug in the values, we have

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