Maria is a college professor, and she wonders how the scores compare on her midterm and her final. She teaches two sections of a course, and each section has 180 students. She decides to take a random sample of 10
students from each section. For those students, she'll calculate the mean midterm score and the mean final
score. She plans to look at the difference (Final - Midterm) between those means.
Consider the formula:
02 02
021-22 =
+
V ni
722
Why is it not appropriate to use this formula for the standard deviation of Tp - EM?

nothjing

step-by-step explanation:

answer: bearing in mind that a rectangle has a perimeter of length + length + width + width.

step-by-step explanation:

p = perimeter

l = length

x=width

p = 2l + 2x

p = 2(l+x)     < ==== perimeter of the base of the box.

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.

it would not be increasing by nothing that i can see probably by 25 percent that is all i can sat\y for now if i have any thing else to say i will edit this.

step-by-step explanation: