2. A study of 50 people who were not on a diet showed that they consumed an average of 2200 they consumed an average of 2100 calories per day, with a standard deviation of 250 calories per day.
Assume both populations are normally distributed
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a) Test the claim that people on a diet consume fewer calories.
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Test the claim that people on a diet have a lower standard deviation in the number of calories

b

step-by-step explanation:

given : the shape of his satellite can be modeled by   where x and y are modeled in inches.

now,the given equation   is a equation of parabola.

here, coefficient of x is positive, hence the parabola opens rightwards.

on comparing this equation with standard equation , we get

in standard equation, coordinates of focus=(0,m)

thus for given equation coordinates of focus=(0,1.5)

step-by-step explanation:

hello,

as we don't know if g(x) is continue,

answer b

f(x)=2x²-8x+1=2(x²-4x+4)+1-8=2(x-2)²-7

vertex is (2,-7) ( a minimum since coefficient of x² is > 0)