Mathematics, 22.04.2021 21:30 amoauya
Elena would like to know the average height of seventh graders in her school district. She measures the heights of everyone in a random sample of 20 students. The mean height of Elena's sample is 62 inches, and the MAD (mean absolute deviation) is 2 inches. SELECT ALL TRUE STATEMENTS.
a. The median height of the sample must be between 59 and 63 inches.
b. Another random sample of 20 students is likely to have a mean between 57 and 65 inches
c. The mean height of these 20 students is likely to be the same as the mean height of all students in the district.
d. The mean height of these 20 students is likely to be the same as the mean height of a second random sample of 20 students.
e. Elena would be more likely to get an accurate estimate of the mean height of the population by sampling 40 people instead of sampling 20 people.
Answers: 2
Mathematics, 21.06.2019 22:30
Which statements are true about additional information for proving that the triangles are congruent check all that apply
Answers: 1
Mathematics, 21.06.2019 23:00
What is the value of x in the equation7x+2y=48 when y=3
Answers: 2
Mathematics, 22.06.2019 00:30
The power generated by an electrical circuit (in watts) as a function of its current c (in amperes) is modeled by p(c)= -15c(c-8) what current will produce the maximum power?
Answers: 1
Mathematics, 22.06.2019 02:00
Which expression is equivalent to (5x^7+7x^8) − (4x^4−2x^8)? a. 9x^8 + 5x^7−4x^4 b. 3x^8 + 7x^7 c. 12x^8 − 2x^4 d. 5x^8 + 5x^7 + 4x^4
Answers: 1
Elena would like to know the average height of seventh graders in her school district. She measures...
Mathematics, 22.04.2020 17:15
History, 22.04.2020 17:15
Chemistry, 22.04.2020 17:16
Mathematics, 22.04.2020 17:16
Mathematics, 22.04.2020 17:16