Mathematics, 18.05.2021 04:30 quesorules7101
5. A consumer group is trying to determine the mean amount that a family of four spends on food per week.
They perform a phone survey of 300 random families of four and find a sample mean of $241.50 with a
standard deviation of $46.72.
(a) Determine an estimate for the standard (b) What is the margin of error for the mean
deviation of the sample means, O. Show your amount spent on food per week?
calculation.
Answers: 3
Mathematics, 21.06.2019 22:40
Aclassmate thinks that solving a system by graphing gives an exact answer when the lines appear to cross at a grid point, but only an approximate answer when they don't. explain why this isn't true.
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Mathematics, 21.06.2019 22:40
Alina fully simplifies this polynomial and then writes it in standard form. xy2 – 2x2y + 3y3 – 6x2y + 4xy2 if alina wrote the last term as 3y3, which must be the first term of her polynomial in standard form? xy2 5xy2 –8x2y –2x2y
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Mathematics, 22.06.2019 05:20
Question 10 multiple choice worth 1 points) (09.06) based on the graph below, what is the total number of solutions to the equation f) = ? 10.5 + 13,75 + 11 + 25 + 2.75 -6 -5 4 3 2- -2.75 g(x) 65 -8.25 - 13.75 - one otwo three four
Answers: 2
5. A consumer group is trying to determine the mean amount that a family of four spends on food per...
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